1.1 --- a/CPU_ROM_KBD.sch Mon Jan 23 00:37:25 2023 +0100
1.2 +++ b/CPU_ROM_KBD.sch Tue Jan 24 21:56:51 2023 +0100
1.3 @@ -4,7 +4,7 @@
1.4 EELAYER END
1.5 $Descr A4 11693 8268
1.6 encoding utf-8
1.7 -Sheet 7 9
1.8 +Sheet 7 10
1.9 Title ""
1.10 Date ""
1.11 Rev ""
1.12 @@ -20,8 +20,8 @@
1.13 P 5400 4050
1.14 AR Path="/61F22EDC" Ref="IC?" Part="1"
1.15 AR Path="/61F2273C/61F22EDC" Ref="IC3" Part="1"
1.16 -F 0 "IC3" H 5400 5528 50 0000 C CNN
1.17 -F 1 "6502A" H 5400 5437 50 0000 C CNN
1.18 +F 0 "IC3" H 5400 5450 50 0000 C CNN
1.19 +F 1 "6502A" H 5400 5350 50 0000 C CNN
1.20 F 2 "" H 5400 4050 50 0001 C CNN
1.21 F 3 "" H 5400 4050 50 0001 C CNN
1.22 1 5400 4050
1.23 @@ -148,8 +148,8 @@
1.24 P 3300 3700
1.25 AR Path="/61F22F23" Ref="IC?" Part="1"
1.26 AR Path="/61F2273C/61F22F23" Ref="IC2" Part="1"
1.27 -F 0 "IC2" H 3300 4600 50 0000 C CNN
1.28 -F 1 "ROM_32K" H 3300 4500 50 0000 C CNN
1.29 +F 0 "IC2" H 3300 4500 50 0000 C CNN
1.30 +F 1 "ROM_32K" H 3300 4400 50 0000 C CNN
1.31 F 2 "" H 3300 3700 50 0001 C CNN
1.32 F 3 "" H 3300 3700 50 0001 C CNN
1.33 1 3300 3700
1.34 @@ -232,21 +232,21 @@
1.35 Text Label 5900 3900 0 50 ~ 0
1.36 D7
1.37 Entry Wire Line
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1.39 + 6400 3200 6500 3300
1.40 Entry Wire Line
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1.42 + 6400 3300 6500 3400
1.43 Entry Wire Line
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1.45 + 6400 3400 6500 3500
1.46 Entry Wire Line
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1.48 + 6400 3500 6500 3600
1.49 Entry Wire Line
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1.51 + 6400 3600 6500 3700
1.52 Entry Wire Line
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1.54 + 6400 3700 6500 3800
1.55 Entry Wire Line
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1.57 + 6400 3800 6500 3900
1.58 Entry Wire Line
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1.60 + 6400 3900 6500 4000
1.61 Entry Wire Line
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1.63 Entry Wire Line
1.64 @@ -441,11 +441,11 @@
1.65 1 0 0 1
1.66 $EndComp
1.67 Wire Wire Line
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1.69 + 3800 3400 4200 3400
1.70 Wire Wire Line
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1.72 + 4200 3400 4200 5000
1.73 Wire Wire Line
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1.75 + 4200 5000 4450 5000
1.76 Wire Wire Line
1.77 4550 5000 4550 5100
1.78 Wire Wire Line
1.79 @@ -459,19 +459,19 @@
1.80 Text GLabel 5200 2400 1 50 Input ~ 0
1.81 5V
1.82 Wire Wire Line
1.83 - 5200 2750 5200 2400
1.84 + 5200 2750 5200 2500
1.85 $Comp
1.86 L Device:C C?
1.87 U 1 1 61F22FD5
1.88 -P 3750 2750
1.89 +P 3800 2500
1.90 AR Path="/61F22FD5" Ref="C?" Part="1"
1.91 AR Path="/61F2273C/61F22FD5" Ref="A1" Part="1"
1.92 -F 0 "A1" H 3865 2796 50 0000 L CNN
1.93 -F 1 "A" H 3865 2705 50 0000 L CNN
1.94 -F 2 "" H 3788 2600 50 0001 C CNN
1.95 -F 3 "~" H 3750 2750 50 0001 C CNN
1.96 - 1 3750 2750
1.97 - 1 0 0 -1
1.98 +F 0 "A1" H 3915 2546 50 0000 L CNN
1.99 +F 1 "47n/33n decoupler" H 3915 2455 50 0000 L CNN
1.100 +F 2 "" H 3838 2350 50 0001 C CNN
1.101 +F 3 "~" H 3800 2500 50 0001 C CNN
1.102 + 1 3800 2500
1.103 + 0 -1 -1 0
1.104 $EndComp
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1.106 0V
1.107 @@ -480,25 +480,15 @@
1.108 Wire Wire Line
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1.110 Wire Wire Line
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1.112 -Wire Wire Line
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1.114 -Wire Wire Line
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1.116 -Wire Wire Line
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1.122 -Wire Wire Line
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1.124 -Wire Wire Line
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1.126 Connection ~ 3550 2500
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1.129 Wire Wire Line
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1.131 + 5300 5700 5300 5600
1.132 Wire Wire Line
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1.134 Wire Wire Line
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1.138 Wire Bus Line
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1.140 + 4000 6100 6500 6100
1.141 Wire Wire Line
1.142 5900 4700 6000 4700
1.143 Wire Wire Line
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1.145 + 5900 3200 6400 3200
1.146 Wire Wire Line
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1.148 + 5900 3300 6400 3300
1.149 Wire Wire Line
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1.151 + 5900 3400 6400 3400
1.152 Wire Wire Line
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1.154 + 5900 3500 6400 3500
1.155 Wire Wire Line
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1.157 + 5900 3600 6400 3600
1.158 Wire Wire Line
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1.160 + 5900 3700 6400 3700
1.161 Wire Wire Line
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1.163 + 5900 3800 6400 3800
1.164 Wire Wire Line
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1.166 + 5900 3900 6400 3900
1.167 Text GLabel 9400 3300 2 50 Input ~ 0
1.168 ~NMI
1.169 Text GLabel 6200 4200 2 50 Input ~ 0
1.170 @@ -569,8 +559,8 @@
1.171 Text GLabel 6800 6100 2 50 BiDi ~ 0
1.172 D[0..7]
1.173 Wire Bus Line
1.174 - 6800 6100 6700 6100
1.175 -Connection ~ 6700 6100
1.176 + 6800 6100 6500 6100
1.177 +Connection ~ 6500 6100
1.178 Text GLabel 6800 1100 2 50 Output ~ 0
1.179 KBD[0..3]
1.180 Wire Bus Line
1.181 @@ -680,25 +670,6 @@
1.182 Connection ~ 6800 4100
1.183 Wire Wire Line
1.184 6800 4100 6900 4100
1.185 -$Comp
1.186 -L 74xx:74LS08 IC18
1.187 -U 5 1 61FA23D2
1.188 -P 10500 3100
1.189 -F 0 "IC18" H 10730 3146 50 0000 L CNN
1.190 -F 1 "74LS08" H 10730 3055 50 0000 L CNN
1.191 -F 2 "" H 10500 3100 50 0001 C CNN
1.192 -F 3 "http://www.ti.com/lit/gpn/sn74LS08" H 10500 3100 50 0001 C CNN
1.193 - 5 10500 3100
1.194 - 1 0 0 -1
1.195 -$EndComp
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1.197 -5V
1.198 -Wire Wire Line
1.199 - 10500 2500 10500 2600
1.200 -Text GLabel 10500 3700 3 50 Input ~ 0
1.201 -0V
1.202 -Wire Wire Line
1.203 - 10500 3700 10500 3600
1.204 Text Label 6700 1100 2 50 ~ 0
1.205 KBD[0..3]
1.206 Text Label 6700 1500 2 50 ~ 0
1.207 @@ -737,7 +708,7 @@
1.208 2100 1600 2200 1500
1.209 Entry Bus Bus
1.210 4400 1600 4500 1500
1.211 -Text Label 6600 6100 2 50 ~ 0
1.212 +Text Label 6400 6100 2 50 ~ 0
1.213 D[0..7]
1.214 $Comp
1.215 L Jumper:Jumper_2_Open LK8
1.216 @@ -786,6 +757,43 @@
1.217 8900 3300 8500 3300
1.218 Text Notes 8900 3600 0 50 ~ 0
1.219 Diode added to satisfy KiCad\nelectrical rules check.
1.220 +Wire Wire Line
1.221 + 4100 2500 4100 4900
1.222 +Wire Wire Line
1.223 + 3550 2500 3650 2500
1.224 +Wire Wire Line
1.225 + 4100 2500 3950 2500
1.226 +$Comp
1.227 +L Device:C C?
1.228 +U 1 1 63D4F52B
1.229 +P 6150 2600
1.230 +AR Path="/63D4F52B" Ref="C?" Part="1"
1.231 +AR Path="/61F2273C/63D4F52B" Ref="A8" Part="1"
1.232 +F 0 "A8" H 6265 2646 50 0000 L CNN
1.233 +F 1 "47n/33n decoupler" H 6265 2555 50 0000 L CNN
1.234 +F 2 "" H 6188 2450 50 0001 C CNN
1.235 +F 3 "~" H 6150 2600 50 0001 C CNN
1.236 + 1 6150 2600
1.237 + 0 -1 -1 0
1.238 +$EndComp
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1.241 +Wire Wire Line
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1.243 +Wire Wire Line
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1.245 +Connection ~ 5200 2500
1.246 +Wire Wire Line
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1.248 +Wire Wire Line
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1.250 +Wire Wire Line
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1.252 +Wire Wire Line
1.253 + 6600 2600 6300 2600
1.254 +Connection ~ 5300 5600
1.255 +Wire Wire Line
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1.257 Wire Bus Line
1.258 2200 1500 6800 1500
1.259 Wire Bus Line
1.260 @@ -793,7 +801,7 @@
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1.263 Wire Bus Line
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1.266 Wire Bus Line
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1.268 Wire Bus Line