1.1 --- a/AcornElectronMainboard.sch Sun Jan 30 01:15:47 2022 +0100
1.2 +++ b/AcornElectronMainboard.sch Sun Jan 30 01:52:46 2022 +0100
1.3 @@ -58,7 +58,7 @@
1.4 Text Label 2900 5400 2 50 ~ 0
1.5 A15
1.6 Wire Bus Line
1.7 - 2000 3800 2100 3800
1.8 + 1700 3800 2100 3800
1.9 Entry Wire Line
1.10 2100 3800 2200 3900
1.11 Entry Wire Line
1.12 @@ -154,33 +154,25 @@
1.13 Wire Wire Line
1.14 2200 3100 2900 3100
1.15 Text Label 2900 2400 2 50 ~ 0
1.16 -A0
1.17 +RA0
1.18 Text Label 2900 2500 2 50 ~ 0
1.19 -A1
1.20 +RA1
1.21 Text Label 2900 2600 2 50 ~ 0
1.22 -A2
1.23 +RA2
1.24 Text Label 2900 2700 2 50 ~ 0
1.25 -A3
1.26 +RA3
1.27 Text Label 2900 2800 2 50 ~ 0
1.28 -A4
1.29 +RA4
1.30 Text Label 2900 2900 2 50 ~ 0
1.31 -A5
1.32 +RA5
1.33 Text Label 2900 3000 2 50 ~ 0
1.34 -A6
1.35 +RA6
1.36 Text Label 2900 3100 2 50 ~ 0
1.37 -A7
1.38 -Entry Wire Line
1.39 - 2100 2000 2200 2100
1.40 -Entry Wire Line
1.41 - 2100 2100 2200 2200
1.42 -Entry Wire Line
1.43 - 2100 2200 2200 2300
1.44 +RA7
1.45 Wire Wire Line
1.46 - 2200 2100 2900 2100
1.47 + 2300 2100 2900 2100
1.48 Wire Wire Line
1.49 - 2200 2200 2900 2200
1.50 -Wire Wire Line
1.51 - 2200 2300 2900 2300
1.52 + 2500 2200 2900 2200
1.53 Text Label 2900 2100 2 50 ~ 0
1.54 ~WE
1.55 Text Label 2900 2200 2 50 ~ 0
1.56 @@ -258,13 +250,13 @@
1.57 1 1400 8900
1.58 -1 0 0 -1
1.59 $EndComp
1.60 -Text GLabel 2800 8800 2 50 Output ~ 0
1.61 +Text GLabel 3700 8800 2 50 Output ~ 0
1.62 5V
1.63 Wire Wire Line
1.64 1600 8800 2200 8800
1.65 -Text GLabel 2800 9300 2 50 Output ~ 0
1.66 +Text GLabel 3700 9300 2 50 Output ~ 0
1.67 0V
1.68 -Text GLabel 2800 9800 2 50 Output ~ 0
1.69 +Text GLabel 3700 9800 2 50 Output ~ 0
1.70 -5V
1.71 Wire Wire Line
1.72 1900 9300 2100 9300
1.73 @@ -281,48 +273,44 @@
1.74 Connection ~ 3800 6900
1.75 Wire Wire Line
1.76 3800 6900 3800 6750
1.77 -Text GLabel 3600 900 1 50 Input ~ 0
1.78 +Text GLabel 3600 700 1 50 Input ~ 0
1.79 5V
1.80 Wire Wire Line
1.81 - 3600 900 3600 1000
1.82 + 3600 700 3600 800
1.83 $Comp
1.84 L Device:R R5
1.85 U 1 1 61F10DD6
1.86 -P 3800 1250
1.87 -F 0 "R5" H 3650 1300 50 0000 L CNN
1.88 -F 1 "24R" H 3750 1200 50 0000 R CNN
1.89 -F 2 "" V 3730 1250 50 0001 C CNN
1.90 -F 3 "~" H 3800 1250 50 0001 C CNN
1.91 - 1 3800 1250
1.92 +P 3800 1050
1.93 +F 0 "R5" H 3650 1100 50 0000 L CNN
1.94 +F 1 "24R" H 3750 1000 50 0000 R CNN
1.95 +F 2 "" V 3730 1050 50 0001 C CNN
1.96 +F 3 "~" H 3800 1050 50 0001 C CNN
1.97 + 1 3800 1050
1.98 1 0 0 -1
1.99 $EndComp
1.100 $Comp
1.101 L Device:R R58
1.102 U 1 1 61F10E39
1.103 -P 4000 1250
1.104 -F 0 "R58" H 4050 1300 50 0000 L CNN
1.105 -F 1 "24R" H 4050 1200 50 0000 L CNN
1.106 -F 2 "" V 3930 1250 50 0001 C CNN
1.107 -F 3 "~" H 4000 1250 50 0001 C CNN
1.108 - 1 4000 1250
1.109 +P 4000 1050
1.110 +F 0 "R58" H 4050 1100 50 0000 L CNN
1.111 +F 1 "24R" H 4050 1000 50 0000 L CNN
1.112 +F 2 "" V 3930 1050 50 0001 C CNN
1.113 +F 3 "~" H 4000 1050 50 0001 C CNN
1.114 + 1 4000 1050
1.115 1 0 0 -1
1.116 $EndComp
1.117 Wire Wire Line
1.118 - 3800 1550 3800 1400
1.119 + 3800 1550 3800 1350
1.120 Wire Wire Line
1.121 - 4000 1550 4000 1400
1.122 -Wire Wire Line
1.123 - 3800 1100 3800 1000
1.124 + 3800 900 3800 800
1.125 Wire Wire Line
1.126 - 3800 1000 3600 1000
1.127 -Connection ~ 3600 1000
1.128 -Wire Wire Line
1.129 - 3600 1000 3600 1550
1.130 + 3800 800 3600 800
1.131 +Connection ~ 3600 800
1.132 Wire Wire Line
1.133 - 4000 1100 4000 1000
1.134 + 3600 800 3600 1550
1.135 Wire Wire Line
1.136 - 4000 1000 3800 1000
1.137 -Connection ~ 3800 1000
1.138 + 4000 800 3800 800
1.139 +Connection ~ 3800 800
1.140 $Comp
1.141 L Device:C C27
1.142 U 1 1 61FBBBB4
1.143 @@ -335,9 +323,9 @@
1.144 1 0 0 -1
1.145 $EndComp
1.146 Wire Wire Line
1.147 - 3600 1000 3350 1000
1.148 + 3600 800 3350 800
1.149 Wire Wire Line
1.150 - 3350 1000 3350 1100
1.151 + 3350 800 3350 1100
1.152 Text GLabel 3250 1500 0 50 Input ~ 0
1.153 0V
1.154 Wire Wire Line
1.155 @@ -418,8 +406,6 @@
1.156 2600 9800 2600 9700
1.157 Connection ~ 2600 9800
1.158 Wire Wire Line
1.159 - 2600 9800 2800 9800
1.160 -Wire Wire Line
1.161 2600 9400 2600 9300
1.162 Connection ~ 2600 9300
1.163 Wire Wire Line
1.164 @@ -428,12 +414,8 @@
1.165 2700 9300 2700 9200
1.166 Connection ~ 2700 9300
1.167 Wire Wire Line
1.168 - 2700 9300 2800 9300
1.169 -Wire Wire Line
1.170 2700 8900 2700 8800
1.171 Connection ~ 2700 8800
1.172 -Wire Wire Line
1.173 - 2700 8800 2800 8800
1.174 $Comp
1.175 L Connector_Generic:Conn_01x02 PL4
1.176 U 1 1 627DA4FF
1.177 @@ -480,13 +462,13 @@
1.178 F1 "RAM.sch" 50
1.179 $EndSheet
1.180 Wire Bus Line
1.181 - 2100 2000 2000 2000
1.182 + 2100 2300 1700 2300
1.183 Wire Bus Line
1.184 - 2100 1600 2000 1600
1.185 -Text GLabel 2000 1600 0 50 BiDi ~ 0
1.186 -RAM_DATA
1.187 -Text GLabel 2000 2000 0 50 Output ~ 0
1.188 -RAM_ADDRESS
1.189 + 2100 1600 1700 1600
1.190 +Text GLabel 1700 1600 0 50 BiDi ~ 0
1.191 +RAM[0..3]
1.192 +Text GLabel 1700 2300 0 50 Output ~ 0
1.193 +RA[0..7]
1.194 $Sheet
1.195 S 5800 1300 700 300
1.196 U 624B50A6
1.197 @@ -511,14 +493,14 @@
1.198 SOUND_OUTPUT
1.199 Wire Wire Line
1.200 5600 4700 5800 4700
1.201 -Text GLabel 2000 10100 2 50 UnSpc ~ 0
1.202 +Text GLabel 2600 10100 2 50 UnSpc ~ 0
1.203 POWER_AC_RETURN
1.204 -Text GLabel 2000 10200 2 50 UnSpc ~ 0
1.205 +Text GLabel 2600 10200 2 50 UnSpc ~ 0
1.206 POWER_18VAC
1.207 Wire Wire Line
1.208 - 1600 10100 2000 10100
1.209 + 1600 10100 2100 10100
1.210 Wire Wire Line
1.211 - 1600 10200 2000 10200
1.212 + 1600 10200 2100 10200
1.213 Wire Wire Line
1.214 3500 7600 4600 7600
1.215 Text GLabel 1700 6400 0 50 Output ~ 0
1.216 @@ -529,12 +511,12 @@
1.217 F0 "Expansion" 50
1.218 F1 "expansion.sch" 50
1.219 $EndSheet
1.220 -Text GLabel 2000 5400 0 50 BiDi ~ 0
1.221 -CPU_DATA
1.222 +Text GLabel 1700 5400 0 50 BiDi ~ 0
1.223 +D[0..7]
1.224 Wire Bus Line
1.225 - 2000 5400 2100 5400
1.226 -Text GLabel 2000 3800 0 50 Input ~ 0
1.227 -CPU_ADDRESS
1.228 + 1700 5400 2100 5400
1.229 +Text GLabel 1700 3800 0 50 Input ~ 0
1.230 +A[0..15]
1.231 Text GLabel 1700 6600 0 50 Input ~ 0
1.232 RnW
1.233 Text GLabel 2000 6500 0 50 Output ~ 0
1.234 @@ -549,10 +531,10 @@
1.235 F0 "CPU, ROM, keyboard" 50
1.236 F1 "CPU_ROM_KBD.sch" 50
1.237 $EndSheet
1.238 -Text GLabel 2000 3100 0 50 Input ~ 0
1.239 -KBD_DATA
1.240 +Text GLabel 1700 3100 0 50 Input ~ 0
1.241 +KBD[0..3]
1.242 Wire Bus Line
1.243 - 2000 3100 2100 3100
1.244 + 1700 3100 2100 3100
1.245 Wire Wire Line
1.246 2700 3700 2900 3700
1.247 Entry Wire Line
1.248 @@ -587,16 +569,16 @@
1.249 2200 6100 2900 6100
1.250 Wire Wire Line
1.251 2200 6200 2900 6200
1.252 -Text GLabel 2000 3600 0 50 Input ~ 0
1.253 +Text GLabel 1700 3600 0 50 Input ~ 0
1.254 CAPS_LOCK
1.255 Wire Wire Line
1.256 2200 5400 2900 5400
1.257 -Text GLabel 1300 3700 0 50 Output ~ 0
1.258 +Text GLabel 1000 3700 0 50 Output ~ 0
1.259 ROM
1.260 Wire Wire Line
1.261 - 2000 3600 2900 3600
1.262 + 1700 3600 2900 3600
1.263 Wire Wire Line
1.264 - 2300 3700 1300 3700
1.265 + 2300 3700 1000 3700
1.266 Wire Wire Line
1.267 2000 6300 2900 6300
1.268 Wire Wire Line
1.269 @@ -818,16 +800,198 @@
1.270 Wire Wire Line
1.271 6100 8400 6200 8400
1.272 Connection ~ 6200 8400
1.273 -Text Notes 1400 10500 0 50 ~ 0
1.274 +Text Notes 1400 10600 0 50 ~ 0
1.275 PL4 introduced for the two separate connections\non the original board.
1.276 +Text Label 2100 5400 2 50 ~ 0
1.277 +D[0..7]
1.278 +Text Label 2100 3800 2 50 ~ 0
1.279 +A[0..15]
1.280 +Text Label 2100 3100 2 50 ~ 0
1.281 +KBD[0..3]
1.282 +Text Label 2100 2300 2 50 ~ 0
1.283 +RA[0..7]
1.284 +Text GLabel 2300 2100 0 50 Output ~ 0
1.285 +~WE
1.286 +Text GLabel 2500 2200 0 50 Output ~ 0
1.287 +~RAS
1.288 +Text GLabel 2700 2300 0 50 Output ~ 0
1.289 +~CAS
1.290 +Wire Wire Line
1.291 + 2900 2300 2700 2300
1.292 +Text Label 2900 3200 2 50 ~ 0
1.293 +KBD0
1.294 +Text Label 2900 3300 2 50 ~ 0
1.295 +KBD1
1.296 +Text Label 2900 3400 2 50 ~ 0
1.297 +KBD2
1.298 +Text Label 2900 3500 2 50 ~ 0
1.299 +KBD3
1.300 +$Comp
1.301 +L power:PWR_FLAG #FLG0104
1.302 +U 1 1 62281B8F
1.303 +P 2100 10100
1.304 +F 0 "#FLG0104" H 2100 10175 50 0001 C CNN
1.305 +F 1 "PWR_FLAG" H 2100 10274 50 0000 C CNN
1.306 +F 2 "" H 2100 10100 50 0001 C CNN
1.307 +F 3 "~" H 2100 10100 50 0001 C CNN
1.308 + 1 2100 10100
1.309 + 1 0 0 -1
1.310 +$EndComp
1.311 +Connection ~ 2100 10100
1.312 +Wire Wire Line
1.313 + 2100 10100 2600 10100
1.314 +$Comp
1.315 +L power:PWR_FLAG #FLG0105
1.316 +U 1 1 62281BE9
1.317 +P 2100 10200
1.318 +F 0 "#FLG0105" H 2100 10275 50 0001 C CNN
1.319 +F 1 "PWR_FLAG" H 2100 10373 50 0000 C CNN
1.320 +F 2 "" H 2100 10200 50 0001 C CNN
1.321 +F 3 "~" H 2100 10200 50 0001 C CNN
1.322 + 1 2100 10200
1.323 + -1 0 0 1
1.324 +$EndComp
1.325 +Connection ~ 2100 10200
1.326 +Wire Wire Line
1.327 + 2100 10200 2600 10200
1.328 +Wire Wire Line
1.329 + 4000 900 4000 800
1.330 +Wire Wire Line
1.331 + 4000 1550 4000 1250
1.332 +$Comp
1.333 +L power:+5V #PWR0101
1.334 +U 1 1 61F9A343
1.335 +P 3500 8600
1.336 +F 0 "#PWR0101" H 3500 8450 50 0001 C CNN
1.337 +F 1 "+5V" H 3515 8773 50 0000 C CNN
1.338 +F 2 "" H 3500 8600 50 0001 C CNN
1.339 +F 3 "" H 3500 8600 50 0001 C CNN
1.340 + 1 3500 8600
1.341 + 1 0 0 -1
1.342 +$EndComp
1.343 +$Comp
1.344 +L power:GND #PWR0102
1.345 +U 1 1 61FAE014
1.346 +P 3300 9500
1.347 +F 0 "#PWR0102" H 3300 9250 50 0001 C CNN
1.348 +F 1 "GND" H 3305 9327 50 0000 C CNN
1.349 +F 2 "" H 3300 9500 50 0001 C CNN
1.350 +F 3 "" H 3300 9500 50 0001 C CNN
1.351 + 1 3300 9500
1.352 + 1 0 0 -1
1.353 +$EndComp
1.354 +$Comp
1.355 +L power:-5V #PWR0103
1.356 +U 1 1 61FAE0AD
1.357 +P 3500 9600
1.358 +F 0 "#PWR0103" H 3500 9700 50 0001 C CNN
1.359 +F 1 "-5V" H 3515 9773 50 0000 C CNN
1.360 +F 2 "" H 3500 9600 50 0001 C CNN
1.361 +F 3 "" H 3500 9600 50 0001 C CNN
1.362 + 1 3500 9600
1.363 + 1 0 0 -1
1.364 +$EndComp
1.365 +Wire Wire Line
1.366 + 2700 8800 3500 8800
1.367 +Wire Wire Line
1.368 + 2600 9800 3500 9800
1.369 +Wire Wire Line
1.370 + 2700 9300 3300 9300
1.371 +Connection ~ 3500 8800
1.372 +Wire Wire Line
1.373 + 3500 8800 3700 8800
1.374 +Wire Wire Line
1.375 + 3300 9500 3300 9400
1.376 +Connection ~ 3300 9300
1.377 +Wire Wire Line
1.378 + 3300 9300 3700 9300
1.379 +Wire Wire Line
1.380 + 3500 9800 3500 9700
1.381 +Connection ~ 3500 9800
1.382 +Wire Wire Line
1.383 + 3500 9800 3700 9800
1.384 +$Comp
1.385 +L power:PWR_FLAG #FLG0101
1.386 +U 1 1 61FD1C8B
1.387 +P 3500 8700
1.388 +F 0 "#FLG0101" H 3500 8775 50 0001 C CNN
1.389 +F 1 "PWR_FLAG" V 3500 8828 50 0000 L CNN
1.390 +F 2 "" H 3500 8700 50 0001 C CNN
1.391 +F 3 "~" H 3500 8700 50 0001 C CNN
1.392 + 1 3500 8700
1.393 + 0 -1 -1 0
1.394 +$EndComp
1.395 +$Comp
1.396 +L power:PWR_FLAG #FLG0102
1.397 +U 1 1 61FD1D09
1.398 +P 3500 9700
1.399 +F 0 "#FLG0102" H 3500 9775 50 0001 C CNN
1.400 +F 1 "PWR_FLAG" V 3500 9828 50 0000 L CNN
1.401 +F 2 "" H 3500 9700 50 0001 C CNN
1.402 +F 3 "~" H 3500 9700 50 0001 C CNN
1.403 + 1 3500 9700
1.404 + 0 1 1 0
1.405 +$EndComp
1.406 +$Comp
1.407 +L power:PWR_FLAG #FLG0103
1.408 +U 1 1 61FD8A1C
1.409 +P 3300 9400
1.410 +F 0 "#FLG0103" H 3300 9475 50 0001 C CNN
1.411 +F 1 "PWR_FLAG" V 3300 9528 50 0000 L CNN
1.412 +F 2 "" H 3300 9400 50 0001 C CNN
1.413 +F 3 "~" H 3300 9400 50 0001 C CNN
1.414 + 1 3300 9400
1.415 + 0 -1 -1 0
1.416 +$EndComp
1.417 +Connection ~ 3300 9400
1.418 +Wire Wire Line
1.419 + 3300 9400 3300 9300
1.420 +Wire Wire Line
1.421 + 3500 8600 3500 8700
1.422 +Connection ~ 3500 8700
1.423 +Wire Wire Line
1.424 + 3500 8700 3500 8800
1.425 +Connection ~ 3500 9700
1.426 +Wire Wire Line
1.427 + 3500 9600 3500 9700
1.428 Wire Bus Line
1.429 2100 1600 2100 1900
1.430 Wire Bus Line
1.431 2100 3100 2100 3400
1.432 Wire Bus Line
1.433 - 2100 2000 2100 3000
1.434 + 2100 2300 2100 3000
1.435 Wire Bus Line
1.436 2100 5400 2100 6100
1.437 Wire Bus Line
1.438 2100 3800 2100 5300
1.439 +$Comp
1.440 +L power:PWR_FLAG #FLG0106
1.441 +U 1 1 62024979
1.442 +P 4000 1250
1.443 +F 0 "#FLG0106" H 4000 1325 50 0001 C CNN
1.444 +F 1 "PWR_FLAG" V 4000 1378 50 0000 L CNN
1.445 +F 2 "" H 4000 1250 50 0001 C CNN
1.446 +F 3 "~" H 4000 1250 50 0001 C CNN
1.447 + 1 4000 1250
1.448 + 0 1 1 0
1.449 +$EndComp
1.450 +Connection ~ 4000 1250
1.451 +Wire Wire Line
1.452 + 4000 1250 4000 1200
1.453 +$Comp
1.454 +L power:PWR_FLAG #FLG0107
1.455 +U 1 1 620249E5
1.456 +P 3800 1350
1.457 +F 0 "#FLG0107" H 3800 1425 50 0001 C CNN
1.458 +F 1 "PWR_FLAG" V 3800 1650 50 0000 L CNN
1.459 +F 2 "" H 3800 1350 50 0001 C CNN
1.460 +F 3 "~" H 3800 1350 50 0001 C CNN
1.461 + 1 3800 1350
1.462 + 0 1 1 0
1.463 +$EndComp
1.464 +Connection ~ 3800 1350
1.465 +Wire Wire Line
1.466 + 3800 1350 3800 1200
1.467 +Text Notes 4550 1400 0 50 ~ 0
1.468 +Note that KiCad gets upset\nwhen connecting passives\nto power input pins.
1.469 $EndSCHEMATC
2.1 --- a/CPU_ROM_KBD.sch Sun Jan 30 01:15:47 2022 +0100
2.2 +++ b/CPU_ROM_KBD.sch Sun Jan 30 01:52:46 2022 +0100
2.3 @@ -65,8 +65,6 @@
2.4 A14
2.5 Text Label 4900 4600 2 50 ~ 0
2.6 A15
2.7 -Wire Bus Line
2.8 - 4400 1500 6800 1500
2.9 Entry Wire Line
2.10 4400 3000 4500 3100
2.11 Entry Wire Line
2.12 @@ -157,69 +155,66 @@
2.13 1 3300 3700
2.14 1 0 0 -1
2.15 $EndComp
2.16 -Wire Bus Line
2.17 - 4400 1500 2200 1500
2.18 -Connection ~ 4400 1500
2.19 Entry Wire Line
2.20 - 2200 3100 2300 3200
2.21 + 2500 3100 2600 3200
2.22 Entry Wire Line
2.23 - 2200 3200 2300 3300
2.24 + 2500 3200 2600 3300
2.25 Entry Wire Line
2.26 - 2200 3300 2300 3400
2.27 + 2500 3300 2600 3400
2.28 Entry Wire Line
2.29 - 2200 3400 2300 3500
2.30 + 2500 3400 2600 3500
2.31 Entry Wire Line
2.32 - 2200 3500 2300 3600
2.33 + 2500 3500 2600 3600
2.34 Entry Wire Line
2.35 - 2200 3600 2300 3700
2.36 + 2500 3600 2600 3700
2.37 Entry Wire Line
2.38 - 2200 3700 2300 3800
2.39 + 2500 3700 2600 3800
2.40 Entry Wire Line
2.41 - 2200 3800 2300 3900
2.42 + 2500 3800 2600 3900
2.43 Entry Wire Line
2.44 - 2200 3900 2300 4000
2.45 + 2500 3900 2600 4000
2.46 Entry Wire Line
2.47 - 2200 4000 2300 4100
2.48 + 2500 4000 2600 4100
2.49 Entry Wire Line
2.50 - 2200 4100 2300 4200
2.51 + 2500 4100 2600 4200
2.52 Entry Wire Line
2.53 - 2200 4200 2300 4300
2.54 + 2500 4200 2600 4300
2.55 Entry Wire Line
2.56 - 2200 4300 2300 4400
2.57 + 2500 4300 2600 4400
2.58 Entry Wire Line
2.59 - 2200 4400 2300 4500
2.60 + 2500 4400 2600 4500
2.61 Entry Wire Line
2.62 - 2200 4500 2300 4600
2.63 + 2500 4500 2600 4600
2.64 Wire Wire Line
2.65 - 2300 3200 2800 3200
2.66 + 2600 3200 2800 3200
2.67 Wire Wire Line
2.68 - 2300 3300 2800 3300
2.69 + 2600 3300 2800 3300
2.70 Wire Wire Line
2.71 - 2300 3400 2800 3400
2.72 + 2600 3400 2800 3400
2.73 Wire Wire Line
2.74 - 2300 3500 2800 3500
2.75 + 2600 3500 2800 3500
2.76 Wire Wire Line
2.77 - 2300 3600 2800 3600
2.78 + 2600 3600 2800 3600
2.79 Wire Wire Line
2.80 - 2300 3700 2800 3700
2.81 + 2600 3700 2800 3700
2.82 Wire Wire Line
2.83 - 2300 3800 2800 3800
2.84 + 2600 3800 2800 3800
2.85 Wire Wire Line
2.86 - 2300 3900 2800 3900
2.87 + 2600 3900 2800 3900
2.88 Wire Wire Line
2.89 - 2300 4000 2800 4000
2.90 + 2600 4000 2800 4000
2.91 Wire Wire Line
2.92 - 2300 4100 2800 4100
2.93 + 2600 4100 2800 4100
2.94 Wire Wire Line
2.95 - 2300 4200 2800 4200
2.96 + 2600 4200 2800 4200
2.97 Wire Wire Line
2.98 - 2300 4300 2800 4300
2.99 + 2600 4300 2800 4300
2.100 Wire Wire Line
2.101 - 2300 4400 2800 4400
2.102 + 2600 4400 2800 4400
2.103 Wire Wire Line
2.104 - 2300 4500 2800 4500
2.105 + 2600 4500 2800 4500
2.106 Wire Wire Line
2.107 - 2300 4600 2800 4600
2.108 + 2600 4600 2800 4600
2.109 Text Label 5900 3200 0 50 ~ 0
2.110 D0
2.111 Text Label 5900 3300 0 50 ~ 0
2.112 @@ -288,62 +283,34 @@
2.113 6800 1700 4000 1700
2.114 Wire Wire Line
2.115 4000 1700 4000 3500
2.116 -Entry Wire Line
2.117 - 2100 3000 2200 3100
2.118 -Entry Wire Line
2.119 - 2100 3100 2200 3200
2.120 -Entry Wire Line
2.121 - 2100 3200 2200 3300
2.122 -Entry Wire Line
2.123 - 2100 3300 2200 3400
2.124 -Entry Wire Line
2.125 - 2100 3400 2200 3500
2.126 -Entry Wire Line
2.127 - 2100 3500 2200 3600
2.128 -Entry Wire Line
2.129 - 2100 3600 2200 3700
2.130 -Entry Wire Line
2.131 - 2100 3700 2200 3800
2.132 -Entry Wire Line
2.133 - 2100 3800 2200 3900
2.134 -Entry Wire Line
2.135 - 2100 3900 2200 4000
2.136 -Entry Wire Line
2.137 - 2100 4000 2200 4100
2.138 -Entry Wire Line
2.139 - 2100 4100 2200 4200
2.140 -Entry Wire Line
2.141 - 2100 4200 2200 4300
2.142 -Entry Wire Line
2.143 - 2100 4300 2200 4400
2.144 +Wire Wire Line
2.145 + 1300 3000 2000 3000
2.146 +Wire Wire Line
2.147 + 1300 3100 2000 3100
2.148 +Wire Wire Line
2.149 + 1300 3200 2000 3200
2.150 +Wire Wire Line
2.151 + 1300 3300 2000 3300
2.152 +Wire Wire Line
2.153 + 1300 3400 2000 3400
2.154 +Wire Wire Line
2.155 + 1300 3500 2000 3500
2.156 Wire Wire Line
2.157 - 1300 3000 2100 3000
2.158 + 1300 3600 2000 3600
2.159 Wire Wire Line
2.160 - 1300 3100 2100 3100
2.161 -Wire Wire Line
2.162 - 1300 3200 2100 3200
2.163 + 1300 3700 2000 3700
2.164 Wire Wire Line
2.165 - 1300 3300 2100 3300
2.166 -Wire Wire Line
2.167 - 1300 3400 2100 3400
2.168 + 1300 3800 2000 3800
2.169 Wire Wire Line
2.170 - 1300 3500 2100 3500
2.171 -Wire Wire Line
2.172 - 1300 3600 2100 3600
2.173 + 1300 3900 2000 3900
2.174 Wire Wire Line
2.175 - 1300 3700 2100 3700
2.176 + 1300 4000 2000 4000
2.177 Wire Wire Line
2.178 - 1300 3800 2100 3800
2.179 -Wire Wire Line
2.180 - 1300 3900 2100 3900
2.181 + 1300 4100 2000 4100
2.182 Wire Wire Line
2.183 - 1300 4000 2100 4000
2.184 -Wire Wire Line
2.185 - 1300 4100 2100 4100
2.186 + 1300 4200 2000 4200
2.187 Wire Wire Line
2.188 - 1300 4200 2100 4200
2.189 -Wire Wire Line
2.190 - 1300 4300 2100 4300
2.191 + 1300 4300 2000 4300
2.192 Text Label 2800 3200 2 50 ~ 0
2.193 A0
2.194 Text Label 2800 3300 2 50 ~ 0
2.195 @@ -461,7 +428,7 @@
2.196 4000 3500 3800 3500
2.197 NoConn ~ 4900 4800
2.198 $Comp
2.199 -L Jumper:Jumper_3_Open LK?
2.200 +L Jumper:Jumper_3_Bridged12 LK?
2.201 U 1 1 61F22FC4
2.202 P 4550 5250
2.203 AR Path="/61F22FC4" Ref="LK?" Part="1"
2.204 @@ -471,14 +438,14 @@
2.205 F 2 "" H 4550 5250 50 0001 C CNN
2.206 F 3 "~" H 4550 5250 50 0001 C CNN
2.207 1 4550 5250
2.208 - -1 0 0 1
2.209 + 1 0 0 1
2.210 $EndComp
2.211 Wire Wire Line
2.212 3800 3400 4100 3400
2.213 Wire Wire Line
2.214 4100 3400 4100 5000
2.215 Wire Wire Line
2.216 - 4100 5000 4550 5000
2.217 + 4100 5000 4450 5000
2.218 Wire Wire Line
2.219 4550 5000 4550 5100
2.220 Wire Wire Line
2.221 @@ -589,7 +556,7 @@
2.222 5900 3800 6600 3800
2.223 Wire Wire Line
2.224 5900 3900 6600 3900
2.225 -Text GLabel 8500 4000 2 50 Input ~ 0
2.226 +Text GLabel 8800 3750 2 50 Input ~ 0
2.227 ~NMI
2.228 Text GLabel 6200 4200 2 50 Input ~ 0
2.229 ~IRQ
2.230 @@ -598,14 +565,14 @@
2.231 Text GLabel 7700 5000 2 50 Input ~ 0
2.232 PHI_OUT
2.233 Text GLabel 6800 1500 2 50 Output ~ 0
2.234 -CPU_ADDRESS
2.235 +A[0..15]
2.236 Text GLabel 6800 6100 2 50 BiDi ~ 0
2.237 -CPU_DATA
2.238 +D[0..7]
2.239 Wire Bus Line
2.240 6800 6100 6700 6100
2.241 Connection ~ 6700 6100
2.242 Text GLabel 6800 1100 2 50 Output ~ 0
2.243 -KBD_DATA
2.244 +KBD[0..3]
2.245 Wire Bus Line
2.246 6800 1100 2000 1100
2.247 Text GLabel 7500 1300 2 50 Output ~ 0
2.248 @@ -671,21 +638,10 @@
2.249 2 7200 4100
2.250 -1 0 0 -1
2.251 $EndComp
2.252 -$Comp
2.253 -L Jumper:Jumper_2_Open LK8
2.254 -U 1 1 61F363E2
2.255 -P 8000 4000
2.256 -F 0 "LK8" H 8000 4235 50 0000 C CNN
2.257 -F 1 "Enable buffer" H 8000 4144 50 0000 C CNN
2.258 -F 2 "" H 8000 4000 50 0001 C CNN
2.259 -F 3 "~" H 8000 4000 50 0001 C CNN
2.260 - 1 8000 4000
2.261 - 1 0 0 -1
2.262 -$EndComp
2.263 Text GLabel 8100 3600 2 50 Input ~ 0
2.264 5V
2.265 Wire Wire Line
2.266 - 7800 4000 7600 4000
2.267 + 8500 4000 7600 4000
2.268 Wire Wire Line
2.269 7600 4500 7600 4200
2.270 Wire Wire Line
2.271 @@ -696,8 +652,6 @@
2.272 Wire Wire Line
2.273 7600 4800 7500 4800
2.274 Wire Wire Line
2.275 - 8500 4000 8400 4000
2.276 -Wire Wire Line
2.277 7600 4000 7600 3600
2.278 Connection ~ 7600 4000
2.279 Wire Wire Line
2.280 @@ -720,15 +674,12 @@
2.281 Wire Wire Line
2.282 6800 4100 6800 3300
2.283 Wire Wire Line
2.284 - 6800 3300 8400 3300
2.285 + 6800 3300 8500 3300
2.286 Wire Wire Line
2.287 - 8400 3300 8400 4000
2.288 + 8500 3300 8500 3500
2.289 Connection ~ 6800 4100
2.290 Wire Wire Line
2.291 6800 4100 6900 4100
2.292 -Connection ~ 8400 4000
2.293 -Wire Wire Line
2.294 - 8400 4000 8200 4000
2.295 $Comp
2.296 L 74xx:74LS08 IC18
2.297 U 5 1 61FA23D2
2.298 @@ -748,6 +699,75 @@
2.299 0V
2.300 Wire Wire Line
2.301 9300 3700 9300 3600
2.302 +Text Label 6700 1100 2 50 ~ 0
2.303 +KBD[0..3]
2.304 +Text Label 6700 1500 2 50 ~ 0
2.305 +A[0..15]
2.306 +Entry Wire Line
2.307 + 2000 3000 2100 2900
2.308 +Entry Wire Line
2.309 + 2000 3100 2100 3000
2.310 +Entry Wire Line
2.311 + 2000 3200 2100 3100
2.312 +Entry Wire Line
2.313 + 2000 3300 2100 3200
2.314 +Entry Wire Line
2.315 + 2000 3400 2100 3300
2.316 +Entry Wire Line
2.317 + 2000 3500 2100 3400
2.318 +Entry Wire Line
2.319 + 2000 3600 2100 3500
2.320 +Entry Wire Line
2.321 + 2000 3700 2100 3600
2.322 +Entry Wire Line
2.323 + 2000 3800 2100 3700
2.324 +Entry Wire Line
2.325 + 2000 3900 2100 3800
2.326 +Entry Wire Line
2.327 + 2000 4000 2100 3900
2.328 +Entry Wire Line
2.329 + 2000 4100 2100 4000
2.330 +Entry Wire Line
2.331 + 2000 4200 2100 4100
2.332 +Entry Wire Line
2.333 + 2000 4300 2100 4200
2.334 +Entry Bus Bus
2.335 + 2500 1600 2600 1500
2.336 +Entry Bus Bus
2.337 + 2100 1600 2200 1500
2.338 +Entry Bus Bus
2.339 + 4400 1600 4500 1500
2.340 +Text Label 6600 6100 2 50 ~ 0
2.341 +D[0..7]
2.342 +$Comp
2.343 +L Jumper:Jumper_3_Bridged12 LK8
2.344 +U 1 1 622A19C1
2.345 +P 8500 3750
2.346 +F 0 "LK8" V 8546 3837 50 0000 L CNN
2.347 +F 1 "Enable buffer" V 8455 3837 50 0000 L CNN
2.348 +F 2 "" H 8500 3750 50 0001 C CNN
2.349 +F 3 "~" H 8500 3750 50 0001 C CNN
2.350 + 1 8500 3750
2.351 + 0 -1 1 0
2.352 +$EndComp
2.353 +Wire Wire Line
2.354 + 8800 3750 8650 3750
2.355 +$Comp
2.356 +L power:PWR_FLAG #FLG0108
2.357 +U 1 1 62024ADF
2.358 +P 4450 5000
2.359 +F 0 "#FLG0108" H 4450 5075 50 0001 C CNN
2.360 +F 1 "PWR_FLAG" H 4450 5174 50 0000 C CNN
2.361 +F 2 "" H 4450 5000 50 0001 C CNN
2.362 +F 3 "~" H 4450 5000 50 0001 C CNN
2.363 + 1 4450 5000
2.364 + 1 0 0 -1
2.365 +$EndComp
2.366 +Connection ~ 4450 5000
2.367 +Wire Wire Line
2.368 + 4450 5000 4550 5000
2.369 +Wire Bus Line
2.370 + 2200 1500 6800 1500
2.371 Wire Bus Line
2.372 2000 1100 2000 2800
2.373 Wire Bus Line
2.374 @@ -755,7 +775,11 @@
2.375 Wire Bus Line
2.376 4000 3800 4000 6100
2.377 Wire Bus Line
2.378 - 2200 1500 2200 4500
2.379 + 2500 1600 2500 4500
2.380 +Wire Bus Line
2.381 + 2100 1600 2100 4200
2.382 Wire Bus Line
2.383 - 4400 1500 4400 4500
2.384 + 4400 1600 4400 4500
2.385 +Text Notes 4300 6450 0 50 ~ 0
2.386 +Note that KiCad cannot determine whether ~CS\nis driven via LK1, so a power flag is required.
2.387 $EndSCHEMATC
3.1 --- a/RAM.sch Sun Jan 30 01:15:47 2022 +0100
3.2 +++ b/RAM.sch Sun Jan 30 01:52:46 2022 +0100
3.3 @@ -59,14 +59,14 @@
3.4 1 0 0 -1
3.5 $EndComp
3.6 Entry Wire Line
3.7 - 1700 2600 1800 2700
3.8 + 1800 2800 1900 2700
3.9 Entry Wire Line
3.10 - 1700 2700 1800 2800
3.11 + 1800 2900 1900 2800
3.12 Entry Wire Line
3.13 - 1700 2800 1800 2900
3.14 + 1800 3000 1900 2900
3.15 Connection ~ 3000 3300
3.16 Wire Bus Line
3.17 - 3000 3300 1700 3300
3.18 + 3000 3300 1800 3300
3.19 Entry Wire Line
3.20 2900 2600 3000 2700
3.21 Entry Wire Line
3.22 @@ -77,15 +77,15 @@
3.23 2900 2900 3000 3000
3.24 Entry Wire Line
3.25 2900 3000 3000 3100
3.26 -Connection ~ 3100 3300
3.27 +Connection ~ 3200 3300
3.28 Wire Bus Line
3.29 - 3100 3300 3000 3300
3.30 + 3200 3300 3000 3300
3.31 Entry Wire Line
3.32 - 3100 2600 3200 2700
3.33 + 3200 2800 3300 2700
3.34 Entry Wire Line
3.35 - 3100 2700 3200 2800
3.36 + 3200 2900 3300 2800
3.37 Entry Wire Line
3.38 - 3100 2800 3200 2900
3.39 + 3200 3000 3300 2900
3.40 Entry Wire Line
3.41 4300 2600 4400 2700
3.42 Entry Wire Line
3.43 @@ -97,11 +97,11 @@
3.44 Entry Wire Line
3.45 4300 3000 4400 3100
3.46 Entry Wire Line
3.47 - 4500 2600 4600 2700
3.48 + 4600 2800 4700 2700
3.49 Entry Wire Line
3.50 - 4500 2700 4600 2800
3.51 + 4600 2900 4700 2800
3.52 Entry Wire Line
3.53 - 4500 2800 4600 2900
3.54 + 4600 3000 4700 2900
3.55 Entry Wire Line
3.56 5700 2600 5800 2700
3.57 Entry Wire Line
3.58 @@ -113,11 +113,11 @@
3.59 Entry Wire Line
3.60 5700 3000 5800 3100
3.61 Entry Wire Line
3.62 - 5900 2600 6000 2700
3.63 + 6000 2800 6100 2700
3.64 Entry Wire Line
3.65 - 5900 2700 6000 2800
3.66 + 6000 2900 6100 2800
3.67 Entry Wire Line
3.68 - 5900 2800 6000 2900
3.69 + 6000 3000 6100 2900
3.70 Entry Wire Line
3.71 7100 2600 7200 2700
3.72 Entry Wire Line
3.73 @@ -139,17 +139,17 @@
3.74 Wire Wire Line
3.75 6900 3000 7100 3000
3.76 Wire Wire Line
3.77 - 6000 2700 6200 2700
3.78 + 6100 2700 6200 2700
3.79 Wire Wire Line
3.80 - 6000 2800 6200 2800
3.81 + 6100 2800 6200 2800
3.82 Wire Wire Line
3.83 - 6000 2900 6200 2900
3.84 + 6100 2900 6200 2900
3.85 Wire Wire Line
3.86 - 1800 2700 2000 2700
3.87 + 1900 2700 2000 2700
3.88 Wire Wire Line
3.89 - 1800 2800 2000 2800
3.90 + 1900 2800 2000 2800
3.91 Wire Wire Line
3.92 - 1800 2900 2000 2900
3.93 + 1900 2900 2000 2900
3.94 Wire Wire Line
3.95 2700 2600 2900 2600
3.96 Wire Wire Line
3.97 @@ -161,11 +161,11 @@
3.98 Wire Wire Line
3.99 2700 3000 2900 3000
3.100 Wire Wire Line
3.101 - 3200 2700 3400 2700
3.102 + 3300 2700 3400 2700
3.103 Wire Wire Line
3.104 - 3200 2800 3400 2800
3.105 + 3300 2800 3400 2800
3.106 Wire Wire Line
3.107 - 3200 2900 3400 2900
3.108 + 3300 2900 3400 2900
3.109 Wire Wire Line
3.110 4100 2600 4300 2600
3.111 Wire Wire Line
3.112 @@ -177,11 +177,11 @@
3.113 Wire Wire Line
3.114 4100 3000 4300 3000
3.115 Wire Wire Line
3.116 - 4600 2700 4800 2700
3.117 + 4700 2700 4800 2700
3.118 Wire Wire Line
3.119 - 4600 2800 4800 2800
3.120 + 4700 2800 4800 2800
3.121 Wire Wire Line
3.122 - 4600 2900 4800 2900
3.123 + 4700 2900 4800 2900
3.124 Wire Wire Line
3.125 5500 2600 5700 2600
3.126 Wire Wire Line
3.127 @@ -256,52 +256,20 @@
3.128 A1
3.129 Text Label 2000 2900 2 50 ~ 0
3.130 A1
3.131 -Entry Wire Line
3.132 - 7100 2400 7200 2500
3.133 -Entry Wire Line
3.134 - 5900 2400 6000 2500
3.135 -Entry Wire Line
3.136 - 5900 2500 6000 2600
3.137 -Entry Wire Line
3.138 - 5700 2400 5800 2500
3.139 -Entry Wire Line
3.140 - 4500 2400 4600 2500
3.141 -Entry Wire Line
3.142 - 4500 2500 4600 2600
3.143 -Entry Wire Line
3.144 - 4300 2400 4400 2500
3.145 -Entry Wire Line
3.146 - 3100 2400 3200 2500
3.147 -Entry Wire Line
3.148 - 3100 2500 3200 2600
3.149 -Entry Wire Line
3.150 - 2900 2400 3000 2500
3.151 -Entry Wire Line
3.152 - 1700 2400 1800 2500
3.153 -Entry Wire Line
3.154 - 1700 2500 1800 2600
3.155 -Wire Wire Line
3.156 - 1800 2500 2000 2500
3.157 -Wire Wire Line
3.158 - 1800 2600 2000 2600
3.159 Wire Wire Line
3.160 2700 2400 2900 2400
3.161 Wire Wire Line
3.162 - 3200 2500 3400 2500
3.163 -Wire Wire Line
3.164 - 3200 2600 3400 2600
3.165 -Wire Wire Line
3.166 4100 2400 4300 2400
3.167 Wire Wire Line
3.168 - 4600 2500 4800 2500
3.169 + 4500 2500 4800 2500
3.170 Wire Wire Line
3.171 - 4600 2600 4800 2600
3.172 + 4550 2600 4800 2600
3.173 Wire Wire Line
3.174 5500 2400 5700 2400
3.175 Wire Wire Line
3.176 - 6000 2500 6200 2500
3.177 + 5900 2500 6200 2500
3.178 Wire Wire Line
3.179 - 6000 2600 6200 2600
3.180 + 5950 2600 6200 2600
3.181 Wire Wire Line
3.182 6900 2400 7100 2400
3.183 Text Label 6200 2600 2 50 ~ 0
3.184 @@ -371,20 +339,20 @@
3.185 Connection ~ 7200 3300
3.186 Text Label 6900 2500 0 50 ~ 0
3.187 RAM3
3.188 -Connection ~ 5900 3300
3.189 +Connection ~ 6000 3300
3.190 Wire Bus Line
3.191 - 5900 3300 7200 3300
3.192 -Connection ~ 4500 3300
3.193 + 6000 3300 7200 3300
3.194 +Connection ~ 4600 3300
3.195 Connection ~ 5800 3300
3.196 Wire Bus Line
3.197 - 5800 3300 5900 3300
3.198 + 5800 3300 6000 3300
3.199 Wire Bus Line
3.200 - 4500 3300 5800 3300
3.201 + 4600 3300 5800 3300
3.202 Connection ~ 4400 3300
3.203 Wire Bus Line
3.204 - 4400 3300 4500 3300
3.205 + 4400 3300 4600 3300
3.206 Wire Bus Line
3.207 - 3100 3300 4400 3300
3.208 + 3200 3300 4400 3300
3.209 Text Label 5500 2500 0 50 ~ 0
3.210 RAM2
3.211 Text Label 4100 2500 0 50 ~ 0
3.212 @@ -423,10 +391,10 @@
3.213 2900 1600 3000 1700
3.214 Entry Wire Line
3.215 1600 1600 1700 1700
3.216 -Text GLabel 1400 1200 1 50 Input ~ 0
3.217 +Text GLabel 1000 1200 1 50 Input ~ 0
3.218 5V
3.219 Wire Wire Line
3.220 - 1400 1200 1400 3100
3.221 + 1000 1200 1000 3100
3.222 Wire Wire Line
3.223 6100 3100 6100 3000
3.224 Wire Wire Line
3.225 @@ -446,7 +414,7 @@
3.226 Wire Wire Line
3.227 1900 3000 2000 3000
3.228 Wire Wire Line
3.229 - 1400 3100 1900 3100
3.230 + 1000 3100 1900 3100
3.231 Connection ~ 1900 3100
3.232 Text GLabel 1600 1200 1 50 Input ~ 0
3.233 0V
3.234 @@ -480,11 +448,83 @@
3.235 Wire Wire Line
3.236 2800 1400 4200 1400
3.237 Wire Bus Line
3.238 - 7200 3300 7400 3300
3.239 -Text GLabel 7400 1600 2 50 BiDi ~ 0
3.240 -RAM_DATA
3.241 -Text GLabel 7400 3300 2 50 Input ~ 0
3.242 -RAM_ADDRESS
3.243 + 7200 3300 7700 3300
3.244 +Text GLabel 7700 1600 2 50 BiDi ~ 0
3.245 +RAM[0..3]
3.246 +Text GLabel 7700 3300 2 50 Input ~ 0
3.247 +RA[0..7]
3.248 +Text Label 7600 3300 2 50 ~ 0
3.249 +A[0..7]
3.250 +Text GLabel 7700 3700 2 50 Input ~ 0
3.251 +~WE
3.252 +Text GLabel 7700 3500 2 50 Input ~ 0
3.253 +~RAS
3.254 +Wire Wire Line
3.255 + 1700 2500 2000 2500
3.256 +Text GLabel 7700 1900 2 50 Input ~ 0
3.257 +~CAS
3.258 +Wire Wire Line
3.259 + 1700 3700 3100 3700
3.260 +Wire Wire Line
3.261 + 1700 3700 1700 2500
3.262 +Wire Wire Line
3.263 + 3400 2500 3100 2500
3.264 +Wire Wire Line
3.265 + 3100 2500 3100 3700
3.266 +Connection ~ 3100 3700
3.267 +Wire Wire Line
3.268 + 3100 3700 4500 3700
3.269 +Wire Wire Line
3.270 + 4500 2500 4500 3700
3.271 +Connection ~ 4500 3700
3.272 +Wire Wire Line
3.273 + 4500 3700 5900 3700
3.274 +Wire Wire Line
3.275 + 5900 2500 5900 3700
3.276 +Connection ~ 5900 3700
3.277 +Wire Wire Line
3.278 + 5900 3700 7700 3700
3.279 +Wire Wire Line
3.280 + 5950 2600 5950 3500
3.281 +Wire Wire Line
3.282 + 5950 3500 7700 3500
3.283 +Wire Wire Line
3.284 + 4550 2600 4550 3500
3.285 +Wire Wire Line
3.286 + 4550 3500 5950 3500
3.287 +Connection ~ 5950 3500
3.288 +Wire Wire Line
3.289 + 3400 2600 3150 2600
3.290 +Wire Wire Line
3.291 + 3150 2600 3150 3500
3.292 +Wire Wire Line
3.293 + 3150 3500 4550 3500
3.294 +Connection ~ 4550 3500
3.295 +Wire Wire Line
3.296 + 2000 2600 1750 2600
3.297 +Wire Wire Line
3.298 + 1750 2600 1750 3500
3.299 +Wire Wire Line
3.300 + 1750 3500 3150 3500
3.301 +Connection ~ 3150 3500
3.302 +Wire Wire Line
3.303 + 7100 2400 7100 1900
3.304 +Wire Wire Line
3.305 + 7100 1900 7700 1900
3.306 +Wire Wire Line
3.307 + 5700 2400 5700 1900
3.308 +Wire Wire Line
3.309 + 5700 1900 7100 1900
3.310 +Connection ~ 7100 1900
3.311 +Wire Wire Line
3.312 + 4300 2400 4300 1900
3.313 +Wire Wire Line
3.314 + 4300 1900 5700 1900
3.315 +Connection ~ 5700 1900
3.316 +Wire Wire Line
3.317 + 2900 2400 2900 1900
3.318 +Wire Wire Line
3.319 + 2900 1900 4300 1900
3.320 Wire Wire Line
3.321 1900 3100 3300 3100
3.322 Wire Wire Line
3.323 @@ -492,21 +532,22 @@
3.324 Wire Wire Line
3.325 4700 3100 6100 3100
3.326 Wire Bus Line
3.327 - 5900 2400 5900 3300
3.328 + 1800 2800 1800 3300
3.329 Wire Bus Line
3.330 - 4500 2400 4500 3300
3.331 + 3200 2800 3200 3300
3.332 Wire Bus Line
3.333 - 3100 2400 3100 3300
3.334 + 4600 2800 4600 3300
3.335 Wire Bus Line
3.336 - 1700 2400 1700 3300
3.337 + 6000 2800 6000 3300
3.338 +Wire Bus Line
3.339 + 5800 2700 5800 3300
3.340 Wire Bus Line
3.341 - 3000 2500 3000 3300
3.342 + 7200 2700 7200 3300
3.343 Wire Bus Line
3.344 - 4400 2500 4400 3300
3.345 + 4400 2700 4400 3300
3.346 Wire Bus Line
3.347 - 5800 2500 5800 3300
3.348 + 3000 2700 3000 3300
3.349 Wire Bus Line
3.350 - 7200 2500 7200 3300
3.351 -Wire Bus Line
3.352 - 1600 1600 7400 1600
3.353 + 1600 1600 7700 1600
3.354 +Connection ~ 4300 1900
3.355 $EndSCHEMATC
4.1 --- a/UHF.sch Sun Jan 30 01:15:47 2022 +0100
4.2 +++ b/UHF.sch Sun Jan 30 01:52:46 2022 +0100
4.3 @@ -1076,7 +1076,7 @@
4.4 Wire Wire Line
4.5 10150 2700 10150 2600
4.6 Wire Wire Line
4.7 - 10150 1700 10150 1300
4.8 + 10150 1700 10150 1400
4.9 Connection ~ 9500 2100
4.10 $Comp
4.11 L Device:R R?
4.12 @@ -1459,4 +1459,20 @@
4.13 10700 3000 10800 3000
4.14 Text Notes 9900 3200 0 50 ~ 0
4.15 For optional link to SK3 circuit.
4.16 +$Comp
4.17 +L power:PWR_FLAG #FLG0109
4.18 +U 1 1 62024BC2
4.19 +P 10150 1400
4.20 +F 0 "#FLG0109" H 10150 1475 50 0001 C CNN
4.21 +F 1 "PWR_FLAG" V 10150 1528 50 0000 L CNN
4.22 +F 2 "" H 10150 1400 50 0001 C CNN
4.23 +F 3 "~" H 10150 1400 50 0001 C CNN
4.24 + 1 10150 1400
4.25 + 0 1 1 0
4.26 +$EndComp
4.27 +Connection ~ 10150 1400
4.28 +Wire Wire Line
4.29 + 10150 1400 10150 1300
4.30 +Text Notes 10050 1200 0 50 ~ 0
4.31 +Note that KiCad gets upset\nwhen connecting passives\nto power input pins.
4.32 $EndSCHEMATC
5.1 --- a/expansion.sch Sun Jan 30 01:15:47 2022 +0100
5.2 +++ b/expansion.sch Sun Jan 30 01:52:46 2022 +0100
5.3 @@ -195,7 +195,7 @@
5.4 Wire Wire Line
5.5 7700 4800 7700 4700
5.6 Wire Bus Line
5.7 - 5400 3800 5400 3700
5.8 + 5400 3800 5400 3500
5.9 Entry Wire Line
5.10 4600 3900 4700 3800
5.11 Entry Wire Line
5.12 @@ -246,10 +246,10 @@
5.13 4000 3500 4000 5100
5.14 Wire Wire Line
5.15 4500 4200 4500 5100
5.16 -Text GLabel 5400 3700 1 50 BiDi ~ 0
5.17 -CPU_DATA
5.18 -Text GLabel 7400 3700 1 50 Input ~ 0
5.19 -CPU_ADDRESS
5.20 +Text GLabel 5400 3500 1 50 BiDi ~ 0
5.21 +D[0..7]
5.22 +Text GLabel 7400 3500 1 50 Input ~ 0
5.23 +A[0..15]
5.24 Text GLabel 3800 3500 1 50 Input ~ 0
5.25 SOUND_OUTPUT_EXPANSION
5.26 Text GLabel 3900 4200 1 50 Input ~ 0
5.27 @@ -297,9 +297,29 @@
5.28 Wire Wire Line
5.29 5400 5000 5400 5100
5.30 Wire Bus Line
5.31 - 7400 3700 7400 3800
5.32 + 7400 3500 7400 3800
5.33 +Text Label 7400 3700 0 50 ~ 0
5.34 +A[0..15]
5.35 +Text Label 5400 3700 0 50 ~ 0
5.36 +D[0..7]
5.37 Wire Bus Line
5.38 4700 3800 5400 3800
5.39 Wire Bus Line
5.40 5900 3800 7400 3800
5.41 +Text Label 5300 5100 1 50 ~ 0
5.42 +D0
5.43 +Text Label 5200 5100 1 50 ~ 0
5.44 +D1
5.45 +Text Label 5100 5100 1 50 ~ 0
5.46 +D2
5.47 +Text Label 5000 5100 1 50 ~ 0
5.48 +D3
5.49 +Text Label 4900 5100 1 50 ~ 0
5.50 +D4
5.51 +Text Label 4800 5100 1 50 ~ 0
5.52 +D5
5.53 +Text Label 4700 5100 1 50 ~ 0
5.54 +D6
5.55 +Text Label 4600 5100 1 50 ~ 0
5.56 +D7
5.57 $EndSCHEMATC