GR8RAM/Docs.sch

EESchema Schematic File Version 4
LIBS:GR8RAM-cache
EELAYER 29 0
EELAYER END
$Descr USLetter 11000 8500
encoding utf-8
Sheet 2 2
Title "GR8RAM"
Date "2019-07-23"
Rev "0.1"
Comp "Garrett's Workshop"
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
Text Notes 1500 1100 0    40   ~ 0
S7
Text Notes 6600 850  0    104  ~ 0
Video Access
Text Notes 8600 850  0    100  ~ 0
6502 CPU Access
Text Notes 5700 1100 0    40   ~ 0
S7
Wire Wire Line
	5800 1000 5800 1100
Wire Wire Line
	5500 1000 5800 1000
Wire Wire Line
	5500 1100 5500 1000
Wire Wire Line
	5200 1100 5500 1100
Wire Wire Line
	6400 1000 6400 1100
Wire Wire Line
	6100 1000 6400 1000
Wire Wire Line
	6100 1100 6100 1000
Wire Wire Line
	5800 1100 6100 1100
Wire Wire Line
	6100 1550 6150 1450
Wire Wire Line
	6100 1400 6150 1300
Wire Wire Line
	6100 1150 6150 1250
Wire Wire Line
	10300 1100 10300 1000
Wire Wire Line
	10000 1100 10300 1100
Wire Wire Line
	10000 1000 10000 1100
Wire Wire Line
	9700 1000 10000 1000
Wire Wire Line
	9400 1100 9700 1100
Wire Wire Line
	9400 1000 9400 1100
Wire Wire Line
	9100 1000 9400 1000
Wire Wire Line
	9100 1100 9100 1000
Wire Wire Line
	8800 1100 9100 1100
Wire Wire Line
	8800 1000 8800 1100
Wire Wire Line
	8500 1000 8800 1000
Wire Wire Line
	8500 1100 8500 1000
Wire Wire Line
	8200 1100 8500 1100
Wire Wire Line
	8200 1000 8200 1100
Wire Wire Line
	7900 1000 8200 1000
Wire Wire Line
	7900 1100 7900 1000
Wire Wire Line
	7600 1100 7900 1100
Wire Wire Line
	7300 1100 7300 1000
Wire Wire Line
	7000 1100 7300 1100
Wire Wire Line
	7000 1000 7000 1100
Wire Wire Line
	6700 1000 7000 1000
Wire Wire Line
	6700 1100 6700 1000
Wire Wire Line
	6400 1100 6700 1100
Wire Wire Line
	7600 1000 7600 1100
Wire Wire Line
	10300 1550 9450 1550
Wire Wire Line
	8250 1450 9400 1450
Wire Wire Line
	7350 1550 8200 1550
Wire Wire Line
	8250 1450 8200 1550
Wire Wire Line
	10300 1550 10350 1450
Wire Wire Line
	9400 1450 9450 1550
Wire Wire Line
	7300 1450 7350 1550
Wire Wire Line
	7300 1000 7600 1000
Text Notes 6900 1100 0    40   ~ 0
S1
Text Notes 7500 1100 0    40   ~ 0
S2
Wire Wire Line
	10300 1400 10350 1300
Wire Wire Line
	8250 1400 10300 1400
Wire Wire Line
	8200 1300 8250 1400
Wire Wire Line
	10300 1150 10350 1250
Wire Wire Line
	8250 1150 10300 1150
Wire Wire Line
	8200 1250 8250 1150
Text Notes 8100 1100 0    40   ~ 0
S3
Text Notes 8700 1100 0    40   ~ 0
S4
Text Notes 9300 1100 0    40   ~ 0
S5
Text Notes 9900 1100 0    40   ~ 0
S6
Wire Wire Line
	6150 1250 8200 1250
Text Notes 5100 1100 0    40   ~ 0
S6
Text Notes 4500 1100 0    40   ~ 0
S5
Text Notes 3900 1100 0    40   ~ 0
S4
Text Notes 1800 850  0    104  ~ 0
Video Access
Text Notes 3300 1100 0    40   ~ 0
S3
Text Notes 800  1250 2    50   ~ 0
PHI0
Text Notes 3850 850  0    100  ~ 0
6502 CPU Access (long)
Text Notes 800  1400 2    50   ~ 0
PHI1
Text Notes 900  1100 0    40   ~ 0
S6
Text Notes 2700 1100 0    40   ~ 0
S2
Text Notes 2100 1100 0    40   ~ 0
S1
Wire Wire Line
	2500 1000 2800 1000
Text Notes 800  1550 2    50   ~ 0
~DEVSEL~
Wire Wire Line
	1000 1100 1300 1100
Wire Wire Line
	1000 1000 900  1000
Wire Wire Line
	1000 1100 1000 1000
Wire Wire Line
	2800 1000 2800 1100
Text Notes 800  1100 2    50   ~ 0
C7M
Wire Wire Line
	1300 1100 1300 1000
Wire Wire Line
	1300 1000 1600 1000
Wire Wire Line
	1600 1000 1600 1100
Wire Wire Line
	1600 1100 1900 1100
Wire Wire Line
	1900 1100 1900 1000
Wire Wire Line
	1900 1000 2200 1000
Wire Wire Line
	2200 1000 2200 1100
Wire Wire Line
	2200 1100 2500 1100
Wire Wire Line
	2500 1100 2500 1000
Wire Wire Line
	2800 1100 3100 1100
Wire Wire Line
	3100 1100 3100 1000
Wire Wire Line
	3100 1000 3400 1000
Wire Wire Line
	3400 1000 3400 1100
Wire Wire Line
	3400 1100 3700 1100
Wire Wire Line
	3700 1100 3700 1000
Wire Wire Line
	3700 1000 4000 1000
Wire Wire Line
	4000 1000 4000 1100
Wire Wire Line
	4000 1100 4300 1100
Wire Wire Line
	4300 1100 4300 1000
Wire Wire Line
	4300 1000 4600 1000
Wire Wire Line
	4600 1100 4900 1100
Wire Wire Line
	4900 1100 4900 1000
Wire Wire Line
	4900 1000 5200 1000
Wire Wire Line
	10300 1000 10400 1000
Wire Wire Line
	10350 1250 10400 1250
Wire Wire Line
	10350 1300 10400 1300
Wire Wire Line
	10350 1450 10400 1450
Wire Wire Line
	1350 1300 3400 1300
Wire Wire Line
	1300 1400 1350 1300
Wire Wire Line
	1350 1250 3400 1250
Wire Wire Line
	1300 1150 1350 1250
Wire Wire Line
	900  1150 1300 1150
Wire Wire Line
	1300 1400 900  1400
Wire Wire Line
	3400 1300 3450 1400
Wire Wire Line
	3400 1250 3450 1150
Wire Wire Line
	3450 1400 6100 1400
Wire Wire Line
	3450 1150 6100 1150
Wire Wire Line
	9700 1100 9700 1000
Text Notes 900  3500 0    100  ~ 0
State Synchronization
Text Notes 7050 3500 0    100  ~ 0
Address Bus Routing
Wire Wire Line
	1600 1850 1650 1750
Wire Wire Line
	1600 1750 1650 1850
Text Notes 800  1850 2    50   ~ 0
A
Wire Wire Line
	6400 1750 6450 1850
Wire Wire Line
	6400 1850 6450 1750
Wire Wire Line
	1600 1750 900  1750
Wire Wire Line
	900  1850 1600 1850
Wire Wire Line
	1650 1750 6400 1750
Wire Wire Line
	6450 1750 10400 1750
Wire Wire Line
	6450 1850 10400 1850
Text Notes 800  2000 2    50   ~ 0
D (wr)
Wire Wire Line
	4800 1900 4750 1950
Wire Wire Line
	4800 2000 4750 1950
Wire Wire Line
	4750 1950 1650 1950
Wire Wire Line
	4800 1900 6400 1900
Wire Wire Line
	4800 2000 6400 2000
Wire Wire Line
	9600 1900 9550 1950
Wire Wire Line
	9600 2000 9550 1950
Wire Wire Line
	1600 1900 1650 1950
Wire Wire Line
	1600 2000 1650 1950
Wire Wire Line
	9600 1900 10400 1900
Wire Wire Line
	9600 2000 10400 2000
Text Notes 800  2150 2    50   ~ 0
D (rd)
Wire Wire Line
	5050 2050 5000 2100
Wire Wire Line
	5050 2150 5000 2100
Wire Wire Line
	6400 2050 6450 2100
Wire Wire Line
	6400 2150 6450 2100
Wire Wire Line
	5000 2100 1650 2100
Wire Wire Line
	5050 2050 6400 2050
Wire Wire Line
	5050 2150 6400 2150
Wire Wire Line
	1600 2050 1650 2100
Wire Wire Line
	1600 2150 1650 2100
Wire Wire Line
	1600 2050 900  2050
Wire Wire Line
	1600 2150 900  2150
Wire Wire Line
	9850 2050 10400 2050
Wire Wire Line
	9850 2150 10400 2150
Wire Wire Line
	6450 2100 9800 2100
Wire Wire Line
	9850 2150 9800 2100
Wire Wire Line
	9850 2050 9800 2100
Wire Wire Line
	6450 1950 9550 1950
Wire Wire Line
	6400 2000 6450 1950
Wire Wire Line
	6400 1900 6450 1950
Wire Wire Line
	6150 1300 8200 1300
Text Notes 3650 3900 0    100  ~ 0
ROM / DRAM Control
Text Notes 3650 3550 0    100  ~ 0
Refresh Skip Counter
Text Notes 3700 3650 0    50   ~ 0
Ref[3:0] = ~S1~ ? Ref[3:0] : Ref[3:2]==3 ? 0 : Ref[3:0]+1 @ ~C7M~
Text Notes 950  4850 0    50   ~ 0
BankSEL = A==XXXF & DEVSEL & REGEN\nRAMSEL = A==XXX3 & DEVSEL & REGEN\nRAMSELreg = S3 ? RAMSEL : RAMSELreg;\nAddrHSEL = A==XXX2 & DEVSEL & REGEN\nAddrMSEL = A==XXX1 & DEVSEL & REGEN\nAddrLSEL = A==XXX0 & DEVSEL & REGEN\n\nREGEN = (IOSEL & S3) ? 1 : REGEN @ C7M\nIOROMEN = (A==XXFF & IOSTRB & S3) ? 0 :\n            (A==XX00 & IOSEL & S3) ? 1 :\n            IOROMEN @ C7M
Text Notes 900  3900 0    100  ~ 0
Select Signals
Text Notes 950  3700 0    50   ~ 0
PHI0reg = PHI0 @ C7M\nS[3:0] = (~PHI0~ & PHI0reg) ? 1 : S0 ? 0 : S+1 @ C7M
Wire Wire Line
	1650 1850 6400 1850
Text Notes 800  3050 2    50   ~ 0
RA
Text Notes 800  2750 2    50   ~ 0
~CAS~
Wire Wire Line
	2550 2750 3100 2750
Wire Wire Line
	2500 2650 2550 2750
Wire Wire Line
	3100 2750 3150 2650
Wire Wire Line
	1300 2750 1350 2650
Wire Wire Line
	7900 2750 7350 2750
Wire Wire Line
	7900 2750 7950 2650
Wire Wire Line
	7300 2650 7350 2750
Wire Wire Line
	5500 2950 5550 3050
Wire Wire Line
	5500 3050 5550 2950
Wire Wire Line
	9100 3050 9150 2950
Wire Wire Line
	9100 2950 9150 3050
Wire Wire Line
	9400 2650 9450 2750
Wire Wire Line
	4300 2950 4350 3050
Wire Wire Line
	4300 3050 4350 2950
Wire Wire Line
	10300 3050 10350 2950
Wire Wire Line
	10300 2950 10350 3050
Wire Wire Line
	9150 2950 10300 2950
Wire Wire Line
	9150 3050 10300 3050
Wire Wire Line
	1300 3050 1350 2950
Wire Wire Line
	1300 2950 1350 3050
Wire Wire Line
	1300 2950 900  2950
Wire Wire Line
	1300 3050 900  3050
Wire Wire Line
	4600 2650 4650 2750
Wire Wire Line
	4900 2650 4950 2750
Wire Wire Line
	10300 2750 10350 2650
Wire Wire Line
	900  2750 1300 2750
Wire Wire Line
	9700 2650 9750 2750
Wire Wire Line
	10350 2950 10400 2950
Wire Wire Line
	10350 3050 10400 3050
Wire Wire Line
	5550 2950 9100 2950
Wire Wire Line
	5550 3050 9100 3050
Wire Wire Line
	4350 2950 5500 2950
Wire Wire Line
	4350 3050 5500 3050
Wire Wire Line
	4300 3050 1350 3050
Wire Wire Line
	1350 2950 4300 2950
Text Notes 800  2600 2    50   ~ 0
~CAS~f
Wire Wire Line
	9400 2500 9450 2600
Wire Wire Line
	4600 2500 4650 2600
Wire Wire Line
	5200 2500 5250 2600
Wire Wire Line
	6400 2600 6450 2500
Wire Wire Line
	10000 2500 10050 2600
Text Notes 800  2450 2    50   ~ 0
~CAS~r
Wire Wire Line
	3100 2450 3150 2350
Wire Wire Line
	7900 2450 7350 2450
Wire Wire Line
	7900 2450 7950 2350
Wire Wire Line
	7300 2350 7350 2450
Wire Wire Line
	9700 2350 9750 2450
Wire Wire Line
	4900 2350 4950 2450
Wire Wire Line
	5500 2450 5550 2350
Wire Wire Line
	10300 2450 10350 2350
Wire Wire Line
	4950 2450 5500 2450
Wire Wire Line
	2200 2600 2250 2500
Wire Wire Line
	900  2600 2200 2600
Wire Wire Line
	9750 2450 10300 2450
Wire Wire Line
	6100 2750 6150 2650
Wire Wire Line
	1600 1900 900  1900
Wire Wire Line
	1600 2000 900  2000
Wire Wire Line
	1350 1450 1300 1550
Wire Wire Line
	4650 2600 5250 2600
Wire Wire Line
	9450 2600 10050 2600
Wire Wire Line
	4650 2750 4950 2750
Wire Wire Line
	9450 2750 9750 2750
Wire Wire Line
	2500 2350 2550 2450
Wire Wire Line
	2550 2450 3100 2450
Wire Wire Line
	4050 2900 4900 2900
Wire Wire Line
	10000 2900 10050 2800
Wire Wire Line
	8850 2900 8800 2800
Wire Wire Line
	5200 2900 5250 2800
Wire Wire Line
	4050 2900 4000 2800
Wire Wire Line
	3400 2900 3450 2800
Wire Wire Line
	2850 2900 3400 2900
Wire Wire Line
	2800 2800 2850 2900
Wire Wire Line
	8200 2900 8250 2800
Wire Wire Line
	7650 2900 8200 2900
Wire Wire Line
	7600 2800 7650 2900
Wire Wire Line
	900  2900 1000 2900
Wire Wire Line
	1000 2900 1050 2800
Text Notes 800  2900 2    50   ~ 0
~RAS~
Wire Wire Line
	900  2500 2250 2500
Text Notes 7100 3800 0    50   ~ 0
RA[10:8] = (RAMSEL & (S4 | S5)) ? Addr[10:8] : Addr[21:19] @ C7M\nRA[7:1] = RAMSEL ? (S4 ? Addr[7:1] : Addr[18:12]) : Bank[6:0] @ C7M\nRA[0] = RAMSEL ? (S4 ? Addr[0] : Addr[11]) : A[11] @ C7M
Wire Wire Line
	8850 2900 9700 2900
Text Notes 3700 4850 0    50   ~ 0
DBEN = ~S2~ & ~S3~ @ C7M\nRCS = IOSEL  | (IOSTRB & IOROMEN)\nROE = R~W~\nRWE = ~R~W & (DEVSEL | IOSEL | IOSTRB)\n\nCASr = (S1 & Ref[3:0]==0) | (S5 & RAMSEL) @ C7M\nCASf = ((S5 & R~W~) | S6 | S7) & RAMSEL @ ~C7M~\n\nRASf = (S4 & RAMSEL) | (S5 & RAMSEL & ~R~W) | (S2 & Ref[3:0]==0) @ ~C7M~\nCAS0 = CASr | (CASf & DEVSEL & ~Addr[22]~)\nCAS1 = CASr | (CASf & DEVSEL & Addr[22])
Text Notes 7100 5200 0    50   ~ 0
RD[7:0] = (~R~W & ~RES~) ? D[7:0]: 8’bZ\nD[7:0] = (DBEN & R~W~ & ~RES~ & (DEVSEL | IOSEL | (IOSTRB & ROMEN))) ?\n           AddrHSEL ? {1’b1, Addr[22:16]} : \n           AddrMSEL ? Addr[15:8] : \n           AddrLSEL ? Addr[7:0] : \n           RD[7:0] : 8’bZ
Text Notes 7100 4500 0    50   ~ 0
Bank[6:0] = (S6 & BankSEL & ~R~W) ? D[6:0] : Bank[6:0] @ C7M\nAddr[22:16] = (S6 & AddrHSEL & ~R~W) ? D[6:0] : Addr[22:16] @ C7M\nAddr[15:8] = (S6 & AddrMSEL & ~R~W) ? D[7:0] : Addr[15:8] @ C7M\nAddr[7:0] = (S6 & AddrLSEL & ~R~W) ? D[7:0] : Addr[7:0] @ C7M\nif (S1 & RAMSELreg) Addr[22:0]++ @ C7M
Text Notes 7050 4700 0    100  ~ 0
Data Bus Routing
Text Notes 7050 4050 0    100  ~ 0
6502-Accessible Registers
Wire Wire Line
	4900 2900 4950 2800
Wire Wire Line
	9700 2900 9750 2800
Wire Wire Line
	900  2350 2500 2350
Wire Wire Line
	900  2650 1350 2650
Wire Wire Line
	900  2800 1050 2800
Wire Wire Line
	900  1550 1300 1550
Wire Wire Line
	3400 1450 3450 1550
Wire Wire Line
	3900 1450 3950 1550
Wire Wire Line
	6350 1550 6400 1450
Wire Wire Line
	3450 1550 6100 1550
Wire Wire Line
	6100 1550 6350 1550
Wire Wire Line
	6150 1450 7300 1450
Wire Wire Line
	3550 6050 3450 6150
Wire Wire Line
	3300 6450 3400 6350
Wire Wire Line
	3600 6600 3700 6500
Wire Notes Line
	3500 5950 3500 6750
Text Notes 2750 6100 0    40   ~ 0
7 MHz
Text Notes 2750 6400 0    40   ~ 0
1 MHz (IIgs)
Text Notes 2750 6550 0    40   ~ 0
1 MHz (IIe)
Wire Wire Line
	3450 6300 3550 6200
Text Notes 2750 6250 0    40   ~ 0
1 MHz (//, //+)
Wire Wire Line
	2700 6450 3300 6450
Wire Wire Line
	2700 6600 3600 6600
Wire Wire Line
	4250 6150 4150 6050
Wire Wire Line
	3550 6050 4150 6050
Wire Wire Line
	3550 6200 4350 6200
Wire Wire Line
	4250 6150 4350 6150
Wire Wire Line
	3400 6350 4350 6350
Wire Wire Line
	3700 6500 4350 6500
Wire Wire Line
	2700 6300 3450 6300
Wire Wire Line
	2700 6150 3450 6150
Connection ~ 1050 2800
Wire Wire Line
	1050 2800 2800 2800
Connection ~ 1350 2650
Wire Wire Line
	1350 2650 2500 2650
Connection ~ 1650 1950
Connection ~ 1650 2100
Connection ~ 2250 2500
Wire Wire Line
	2250 2500 4600 2500
Connection ~ 2500 2350
Wire Wire Line
	2500 2350 3150 2350
Connection ~ 2500 2650
Wire Wire Line
	2500 2650 3150 2650
Connection ~ 2800 2800
Wire Wire Line
	2800 2800 3450 2800
Connection ~ 3150 2350
Wire Wire Line
	3150 2350 4900 2350
Connection ~ 3150 2650
Wire Wire Line
	3150 2650 4600 2650
Connection ~ 3450 2800
Wire Wire Line
	3450 2800 4000 2800
Connection ~ 4000 2800
Wire Wire Line
	4000 2800 4950 2800
Connection ~ 4600 2500
Wire Wire Line
	4600 2500 5200 2500
Connection ~ 4600 2650
Wire Wire Line
	4600 2650 4900 2650
Connection ~ 4750 1950
Connection ~ 4900 2350
Wire Wire Line
	4900 2350 5550 2350
Connection ~ 4900 2650
Wire Wire Line
	4900 2650 6150 2650
Connection ~ 4900 2900
Wire Wire Line
	4900 2900 5200 2900
Connection ~ 4950 2750
Wire Wire Line
	4950 2750 6100 2750
Connection ~ 4950 2800
Wire Wire Line
	4950 2800 5250 2800
Connection ~ 5000 2100
Connection ~ 5200 2500
Wire Wire Line
	5200 2500 6450 2500
Connection ~ 5250 2600
Wire Wire Line
	5250 2600 6400 2600
Connection ~ 5250 2800
Wire Wire Line
	5250 2800 7600 2800
Connection ~ 5550 2350
Wire Wire Line
	5550 2350 7300 2350
Connection ~ 6100 1550
Wire Bus Line
	6100 1550 6100 2250
Connection ~ 6150 2650
Wire Wire Line
	6150 2650 7300 2650
Connection ~ 6450 1950
Connection ~ 6450 2100
Connection ~ 6450 2500
Wire Wire Line
	6450 2500 9400 2500
Connection ~ 7300 2350
Wire Wire Line
	7300 2350 7950 2350
Connection ~ 7300 2650
Wire Wire Line
	7300 2650 7950 2650
Connection ~ 7600 2800
Wire Wire Line
	7600 2800 8250 2800
Connection ~ 7950 2350
Wire Wire Line
	7950 2350 9700 2350
Connection ~ 7950 2650
Wire Wire Line
	7950 2650 9400 2650
Connection ~ 8250 2800
Wire Wire Line
	8250 2800 8800 2800
Connection ~ 8800 2800
Wire Wire Line
	8800 2800 9750 2800
Connection ~ 9400 2500
Wire Wire Line
	9400 2500 10000 2500
Connection ~ 9400 2650
Wire Wire Line
	9400 2650 9700 2650
Connection ~ 9550 1950
Connection ~ 9700 2350
Wire Wire Line
	9700 2350 10350 2350
Connection ~ 9700 2650
Wire Wire Line
	9700 2650 10350 2650
Connection ~ 9700 2900
Wire Wire Line
	9700 2900 10000 2900
Connection ~ 9750 2750
Wire Wire Line
	9750 2750 10300 2750
Connection ~ 9750 2800
Wire Wire Line
	9750 2800 10050 2800
Connection ~ 9800 2100
Connection ~ 10000 2500
Wire Wire Line
	10000 2500 10400 2500
Connection ~ 10050 2600
Wire Wire Line
	10050 2600 10400 2600
Connection ~ 10050 2800
Wire Wire Line
	10050 2800 10400 2800
Connection ~ 10350 2350
Wire Wire Line
	10350 2350 10400 2350
Connection ~ 10350 2650
Wire Wire Line
	10350 2650 10400 2650
Wire Wire Line
	1350 1450 3400 1450
Wire Bus Line
	7900 950  7900 2200
Wire Bus Line
	8500 950  8500 2200
Wire Bus Line
	9100 950  9100 2200
Wire Bus Line
	9700 950  9700 2200
Wire Bus Line
	10300 850  10300 2250
Wire Bus Line
	8200 850  8200 2250
Wire Bus Line
	7300 950  7300 2200
Wire Bus Line
	6700 950  6700 2200
Wire Bus Line
	6100 850  6100 1550
Wire Bus Line
	5500 950  5500 2200
Wire Bus Line
	3700 950  3700 2200
Wire Bus Line
	4300 950  4300 2200
Wire Bus Line
	4900 950  4900 2200
Wire Bus Line
	3100 950  3100 2200
Wire Bus Line
	1300 850  1300 2250
Wire Bus Line
	1900 950  1900 2200
Wire Bus Line
	2500 950  2500 2200
Wire Wire Line
	3400 1450 3900 1450
Wire Bus Line
	3400 850  3400 2250
Text Notes 800  1700 2    50   ~ 0
PHI0
Wire Wire Line
	3400 1700 3450 1600
Wire Wire Line
	6600 1600 6650 1700
Wire Wire Line
	3450 1600 6150 1600
Wire Wire Line
	6150 1600 6200 1700
Wire Wire Line
	6200 1700 6650 1700
Wire Wire Line
	3400 1700 1350 1700
Wire Wire Line
	1350 1700 1300 1600
Wire Wire Line
	900  1600 1300 1600
Wire Wire Line
	6650 1700 8200 1700
Connection ~ 6650 1700
Wire Wire Line
	8200 1700 8250 1600
Wire Wire Line
	8250 1600 10300 1600
Connection ~ 6150 1600
Wire Wire Line
	6150 1600 6600 1600
Wire Wire Line
	10400 1650 10450 1650
Wire Wire Line
	10350 1550 10400 1650
Wire Wire Line
	5200 1000 5200 1100
Wire Wire Line
	4600 1000 4600 1100
Text Notes 6300 1100 0    40   ~ 0
S7
$EndSCHEMATC