EESchema Schematic File Version 4 EELAYER 30 0 EELAYER END $Descr USLetter 11000 8500 encoding utf-8 Sheet 2 2 Title "GR8RAM" Date "2021-01-06" Rev "0.9" Comp "Garrett's Workshop" Comment1 "" Comment2 "" Comment3 "" Comment4 "" $EndDescr Text Notes 500 7950 0 200 ~ 0 Information here may be out of date,\nsuperseded by ./cpld/GR8RAM.v Text Notes 1450 650 2 50 ~ 0 C25M Text Notes 1450 800 2 50 ~ 0 PHI0 Wire Wire Line 1600 650 1600 550 Wire Wire Line 1700 550 1600 550 Wire Wire Line 1700 650 1700 550 Wire Wire Line 1800 650 1700 650 Wire Wire Line 1800 650 1800 550 Wire Wire Line 1800 550 1900 550 Wire Wire Line 1900 550 1900 650 Wire Wire Line 1900 650 2000 650 Wire Wire Line 2000 650 2000 550 Wire Wire Line 2000 550 2100 550 Wire Wire Line 2100 550 2100 650 Wire Wire Line 2100 650 2200 650 Wire Wire Line 2200 650 2200 550 Wire Wire Line 2200 550 2300 550 Wire Wire Line 2300 550 2300 650 Wire Wire Line 2300 650 2400 650 Wire Wire Line 2400 650 2400 550 Wire Wire Line 2400 550 2500 550 Wire Wire Line 2500 550 2500 650 Wire Wire Line 2500 650 2600 650 Wire Wire Line 2600 650 2600 550 Wire Wire Line 2600 550 2700 550 Wire Wire Line 2700 550 2700 650 Wire Wire Line 2700 650 2800 650 Wire Wire Line 2800 650 2800 550 Wire Wire Line 2800 550 2900 550 Wire Wire Line 2900 550 2900 650 Wire Wire Line 2900 650 3000 650 Wire Wire Line 3000 650 3000 550 Wire Wire Line 3000 550 3100 550 Wire Wire Line 3100 550 3100 650 Wire Wire Line 3100 650 3200 650 Wire Wire Line 3200 650 3200 550 Wire Wire Line 3200 550 3300 550 Wire Wire Line 3300 550 3300 650 Wire Wire Line 3300 650 3400 650 Wire Wire Line 3400 650 3400 550 Wire Wire Line 3400 550 3500 550 Wire Wire Line 3500 550 3500 650 Wire Wire Line 3500 650 3600 650 Wire Wire Line 3600 650 3600 550 Wire Wire Line 3600 550 3700 550 Wire Wire Line 3700 550 3700 650 Wire Wire Line 3700 650 3800 650 Wire Wire Line 3800 650 3800 550 Wire Wire Line 3800 550 3900 550 Wire Wire Line 3900 550 3900 650 Wire Wire Line 3900 650 4000 650 Wire Wire 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550 5100 550 Wire Wire Line 5300 550 5300 650 Wire Wire Line 5300 650 5400 650 Wire Wire Line 5400 650 5400 550 Wire Wire Line 5200 550 5300 550 Wire Wire Line 1550 850 2600 850 Wire Wire Line 2600 850 2650 950 Wire Wire Line 2650 950 4050 950 Text Notes 1450 950 2 50 ~ 0 ~DEVSEL~ Text Notes 1450 1550 2 50 ~ 0 PHI0r4 Wire Wire Line 4900 1550 5650 1550 Wire Wire Line 4850 1450 4900 1550 Wire Wire Line 1600 1550 2450 1550 Wire Wire Line 2450 1550 2500 1450 Wire Wire Line 2500 1450 4850 1450 Text Notes 3100 2750 0 50 ~ 0 NOP Wire Wire Line 4700 2650 4850 2650 Wire Wire Line 4700 2750 4850 2750 Wire Wire Line 4650 2650 4700 2750 Wire Wire Line 4650 2750 4700 2650 Text Notes 4700 2750 0 50 ~ 0 NOP Wire Wire Line 4650 2600 4700 2500 Wire Wire Line 4700 2500 5050 2500 Wire Wire Line 5050 2500 5100 2600 Wire Wire Line 5100 2600 5650 2600 Wire Wire Line 1650 2750 1600 2750 Wire Wire Line 1650 2650 1600 2650 Text Notes 1450 2600 2 50 ~ 0 CKE (rd) Text Notes 1450 2750 2 50 ~ 0 CMD (rd) Wire Wire Line 2100 2650 2250 2650 Wire Wire Line 2100 2750 2250 2750 Text Notes 2100 2750 0 50 ~ 0 NOP Wire Wire Line 1600 2600 2250 2600 Wire Wire Line 5100 2650 5250 2650 Wire Wire Line 5100 2750 5250 2750 Wire Wire Line 5050 2650 5100 2750 Wire Wire Line 5050 2750 5100 2650 Text Notes 5100 2750 0 50 ~ 0 NOP Text Notes 1700 2750 0 50 ~ 0 NOP Wire Wire Line 2300 2650 2450 2650 Wire Wire Line 2850 2650 2900 2750 Wire Wire Line 2300 2750 2450 2750 Wire Wire Line 2850 2750 2900 2650 Wire Wire Line 2250 2650 2300 2750 Wire Wire Line 2250 2750 2300 2650 Wire Wire Line 1900 2650 2050 2650 Wire Wire Line 2050 2650 2100 2750 Wire Wire Line 1900 2750 2050 2750 Wire Wire Line 2050 2750 2100 2650 Wire Wire Line 1700 2650 1850 2650 Wire Wire Line 1850 2650 1900 2750 Wire Wire Line 1700 2750 1850 2750 Wire Wire Line 1850 2750 1900 2650 Wire Wire Line 1650 2650 1700 2750 Wire Wire Line 1650 2750 1700 2650 Text Notes 2300 2750 0 50 ~ 0 NOP Wire Wire Line 3300 2650 3450 2650 Wire Wire Line 3300 2750 3450 2750 Wire Wire Line 3100 2650 3250 2650 Wire Wire Line 3250 2650 3300 2750 Wire Wire Line 3100 2750 3250 2750 Wire Wire Line 3250 2750 3300 2650 Wire Wire Line 2900 2650 3050 2650 Wire Wire Line 3050 2650 3100 2750 Wire Wire Line 2900 2750 3050 2750 Wire Wire Line 3050 2750 3100 2650 Text Notes 3300 2750 0 50 ~ 0 NOP Wire Wire Line 3500 2650 3650 2650 Wire Wire Line 3500 2750 3650 2750 Wire Wire Line 3450 2650 3500 2750 Wire Wire Line 3450 2750 3500 2650 Text Notes 3500 2750 0 50 ~ 0 NOP Wire Wire Line 3700 2650 3850 2650 Wire Wire Line 3700 2750 3850 2750 Wire Wire Line 3650 2650 3700 2750 Wire Wire Line 3650 2750 3700 2650 Text Notes 3700 2750 0 50 ~ 0 NOP Wire Wire Line 3050 2500 3100 2600 Text Notes 1900 2750 0 50 ~ 0 NOP Wire Wire Line 2250 2600 2300 2500 Wire Wire Line 2300 2500 3050 2500 Wire Wire Line 3900 2650 4050 2650 Wire Wire Line 3900 2750 4050 2750 Wire Wire Line 3850 2650 3900 2750 Wire Wire Line 3850 2750 3900 2650 Text Notes 3900 2750 0 50 ~ 0 NOP Wire Wire Line 4100 2650 4250 2650 Wire Wire Line 4100 2750 4250 2750 Wire Wire Line 4050 2650 4100 2750 Wire Wire Line 4050 2750 4100 2650 Text Notes 4100 2750 0 50 ~ 0 NOP Wire Wire Line 4300 2650 4450 2650 Wire Wire Line 4300 2750 4450 2750 Wire Wire Line 4250 2650 4300 2750 Wire Wire Line 4250 2750 4300 2650 Text Notes 4300 2750 0 50 ~ 0 NOP Wire Wire Line 4500 2650 4650 2650 Wire Wire Line 4500 2750 4650 2750 Wire Wire Line 4450 2650 4500 2750 Wire Wire Line 4450 2750 4500 2650 Text Notes 4500 2750 0 50 ~ 0 NOP Wire Wire Line 4850 2650 4900 2750 Wire Wire Line 4850 2750 4900 2650 Wire Wire Line 2500 2650 2650 2650 Wire Wire Line 2500 2750 2650 2750 Text Notes 2500 2750 0 50 ~ 0 ACT Wire Wire Line 2700 2650 2850 2650 Wire Wire Line 2700 2750 2850 2750 Wire Wire Line 2650 2650 2700 2750 Wire Wire Line 2650 2750 2700 2650 Wire Wire Line 2450 2650 2500 2750 Wire Wire Line 2450 2750 2500 2650 Wire Wire Line 3100 2600 4650 2600 Text Notes 4900 2750 0 40 ~ 0 AREF Wire Wire Line 4900 2750 5050 2750 Wire Wire Line 4900 2650 5050 2650 Text Notes 2700 2750 0 50 ~ 0 RD Wire Wire Line 1650 2450 1600 2450 Wire Wire Line 1650 2350 1600 2350 Text Notes 2700 2450 0 50 ~ 0 NOP Wire Wire Line 2450 2450 2500 2350 Wire Wire Line 2450 2350 2500 2450 Wire Wire Line 2650 2450 2700 2350 Wire Wire Line 2650 2350 2700 2450 Wire Wire Line 2700 2450 2850 2450 Wire Wire Line 2700 2350 2850 2350 Text Notes 2500 2450 0 50 ~ 0 NOP Wire Wire Line 2500 2450 2650 2450 Wire Wire Line 2500 2350 2650 2350 Text Notes 4900 2450 0 40 ~ 0 AREF Wire Wire Line 4850 2450 4900 2350 Wire Wire Line 4850 2350 4900 2450 Wire Wire Line 4900 2450 5050 2450 Wire Wire Line 4900 2350 5050 2350 Text Notes 4700 2450 0 50 ~ 0 NOP Wire Wire Line 4650 2450 4700 2350 Wire Wire Line 4650 2350 4700 2450 Wire Wire Line 4700 2450 4850 2450 Wire Wire Line 4700 2350 4850 2350 Text Notes 4300 2450 0 50 ~ 0 NOP Wire Wire Line 4250 2450 4300 2350 Wire Wire Line 4250 2350 4300 2450 Wire Wire Line 4300 2450 4450 2450 Wire Wire Line 4300 2350 4450 2350 Text Notes 4100 2450 0 50 ~ 0 NOP Wire Wire Line 4050 2450 4100 2350 Wire Wire Line 4050 2350 4100 2450 Wire Wire Line 4100 2450 4250 2450 Wire Wire Line 4100 2350 4250 2350 Text Notes 3900 2450 0 50 ~ 0 NOP Wire Wire Line 3850 2450 3900 2350 Wire Wire Line 3850 2350 3900 2450 Wire Wire Line 3900 2450 4050 2450 Wire Wire Line 3900 2350 4050 2350 Text Notes 1900 2450 0 50 ~ 0 NOP Text Notes 3700 2450 0 50 ~ 0 NOP Wire Wire Line 3650 2450 3700 2350 Wire Wire Line 3650 2350 3700 2450 Wire Wire Line 3700 2450 3850 2450 Wire Wire Line 3700 2350 3850 2350 Text Notes 3500 2450 0 50 ~ 0 NOP Wire Wire Line 3450 2450 3500 2350 Wire Wire Line 3450 2350 3500 2450 Wire Wire Line 3500 2450 3650 2450 Wire Wire Line 3500 2350 3650 2350 Text Notes 3300 2450 0 50 ~ 0 NOP Wire Wire Line 3050 2450 3100 2350 Wire Wire Line 2900 2450 3050 2450 Wire Wire Line 3050 2350 3100 2450 Wire Wire Line 2900 2350 3050 2350 Wire Wire Line 3250 2450 3300 2350 Wire Wire Line 3100 2450 3250 2450 Wire Wire Line 3250 2350 3300 2450 Wire Wire Line 3100 2350 3250 2350 Wire Wire Line 3300 2450 3450 2450 Wire Wire Line 3300 2350 3450 2350 Text Notes 2900 2450 0 50 ~ 0 NOP Text Notes 2300 2450 0 50 ~ 0 NOP Wire Wire Line 1650 2450 1700 2350 Wire Wire Line 1650 2350 1700 2450 Wire Wire Line 1850 2450 1900 2350 Wire Wire Line 1700 2450 1850 2450 Wire Wire Line 1850 2350 1900 2450 Wire Wire Line 1700 2350 1850 2350 Wire Wire Line 2050 2450 2100 2350 Wire Wire Line 1900 2450 2050 2450 Wire Wire Line 2050 2350 2100 2450 Wire Wire Line 1900 2350 2050 2350 Wire Wire Line 2250 2450 2300 2350 Wire Wire Line 2250 2350 2300 2450 Wire Wire Line 2850 2450 2900 2350 Wire Wire Line 2300 2450 2450 2450 Wire Wire Line 2850 2350 2900 2450 Wire Wire Line 2300 2350 2450 2350 Text Notes 1700 2450 0 50 ~ 0 NOP Text Notes 5100 2450 0 50 ~ 0 NOP Wire Wire Line 5050 2450 5100 2350 Wire Wire Line 5050 2350 5100 2450 Wire Wire Line 5100 2450 5250 2450 Wire Wire Line 5100 2350 5250 2350 Text Notes 2100 2450 0 50 ~ 0 NOP Wire Wire Line 2100 2450 2250 2450 Wire Wire Line 2100 2350 2250 2350 Text Notes 1450 2450 2 50 ~ 0 CMD (idle) Text Notes 1450 2300 2 50 ~ 0 CKE (idle,wr) Wire Wire Line 4650 2300 4700 2200 Wire Wire Line 4700 2200 5050 2200 Wire Wire Line 5050 2200 5100 2300 Wire Wire Line 5100 2300 5650 2300 Text Notes 4500 2450 0 50 ~ 0 NOP Wire Wire Line 4450 2450 4500 2350 Wire Wire Line 4450 2350 4500 2450 Wire Wire Line 4500 2450 4650 2450 Wire Wire Line 4500 2350 4650 2350 Text Notes 3100 2450 0 50 ~ 0 NOP Text Notes 1450 1700 2 50 ~ 0 S Wire Wire Line 1650 1700 1600 1700 Wire Wire Line 1650 1600 1600 1600 Text Notes 1750 1700 0 50 ~ 0 0 Text Notes 1950 1700 0 50 ~ 0 0 Wire Wire Line 2100 1600 2250 1600 Wire Wire Line 2100 1700 2250 1700 Wire Wire Line 1900 1600 2050 1600 Wire Wire Line 2050 1600 2100 1700 Wire Wire Line 1900 1700 2050 1700 Wire Wire Line 2050 1700 2100 1600 Wire Wire Line 1700 1600 1850 1600 Wire Wire Line 1850 1600 1900 1700 Wire Wire Line 1700 1700 1850 1700 Wire Wire Line 1850 1700 1900 1600 Wire Wire Line 1650 1600 1700 1700 Wire Wire Line 1650 1700 1700 1600 Text Notes 2150 1700 0 50 ~ 0 0 Text Notes 2750 1700 0 50 ~ 0 3 Wire Wire Line 2450 1700 2500 1600 Wire Wire Line 2450 1600 2500 1700 Wire Wire Line 2650 1700 2700 1600 Wire Wire Line 2650 1600 2700 1700 Wire Wire Line 2700 1700 2850 1700 Wire Wire Line 2700 1600 2850 1600 Text Notes 2550 1700 0 50 ~ 0 2 Wire Wire Line 2500 1700 2650 1700 Wire Wire Line 2500 1600 2650 1600 Text Notes 4750 1700 0 50 ~ 0 0 Wire Wire Line 4650 1700 4700 1600 Wire Wire Line 4650 1600 4700 1700 Wire Wire Line 4700 1700 4850 1700 Wire Wire Line 4700 1600 4850 1600 Wire Wire Line 4450 1700 4500 1600 Wire Wire Line 4450 1600 4500 1700 Wire Wire Line 4500 1700 4650 1700 Wire Wire Line 4500 1600 4650 1600 Wire Wire Line 4250 1700 4300 1600 Wire Wire Line 4250 1600 4300 1700 Wire Wire Line 4300 1700 4450 1700 Wire Wire Line 4300 1600 4450 1600 Text Notes 4150 1700 0 50 ~ 0 0 Wire Wire Line 4050 1700 4100 1600 Wire Wire Line 4050 1600 4100 1700 Wire Wire Line 4100 1700 4250 1700 Wire Wire Line 4100 1600 4250 1600 Wire Wire Line 3850 1700 3900 1600 Wire Wire Line 3850 1600 3900 1700 Wire Wire Line 3900 1700 4050 1700 Wire Wire Line 3900 1600 4050 1600 Wire Wire Line 3650 1700 3700 1600 Wire Wire Line 3650 1600 3700 1700 Wire Wire Line 3700 1700 3850 1700 Wire Wire Line 3700 1600 3850 1600 Text Notes 3550 1700 0 50 ~ 0 7 Wire Wire Line 3450 1700 3500 1600 Wire Wire Line 3450 1600 3500 1700 Wire Wire Line 3500 1700 3650 1700 Wire Wire Line 3500 1600 3650 1600 Text Notes 3350 1700 0 50 ~ 0 6 Text Notes 3150 1700 0 50 ~ 0 5 Wire Wire Line 3050 1700 3100 1600 Wire Wire Line 2900 1700 3050 1700 Wire Wire Line 3050 1600 3100 1700 Wire Wire Line 2900 1600 3050 1600 Wire Wire Line 3250 1700 3300 1600 Wire Wire Line 3100 1700 3250 1700 Wire Wire Line 3250 1600 3300 1700 Wire Wire Line 3100 1600 3250 1600 Wire Wire Line 3300 1700 3450 1700 Wire Wire Line 3300 1600 3450 1600 Text Notes 2950 1700 0 50 ~ 0 4 Wire Wire Line 2250 1700 2300 1600 Wire Wire Line 2250 1600 2300 1700 Wire Wire Line 2850 1700 2900 1600 Wire Wire Line 2300 1700 2450 1700 Wire Wire Line 2850 1600 2900 1700 Wire Wire Line 2300 1600 2450 1600 Text Notes 4950 1700 0 50 ~ 0 0 Wire Wire Line 4850 1700 4900 1600 Wire Wire Line 4850 1600 4900 1700 Wire Wire Line 4900 1700 5050 1700 Wire Wire Line 4900 1600 5050 1600 Text Notes 2350 1700 0 50 ~ 0 1 Text Notes 5150 1700 0 50 ~ 0 0 Wire Wire Line 5050 1700 5100 1600 Wire Wire Line 5050 1600 5100 1700 Wire Wire Line 5100 1700 5250 1700 Wire Wire Line 5100 1600 5250 1600 Text Notes 5350 1700 0 50 ~ 0 0 Wire Wire Line 5250 1700 5300 1600 Wire Wire Line 5250 1600 5300 1700 Wire Wire Line 5300 1700 5450 1700 Wire Wire Line 5300 1600 5450 1600 Text Notes 1450 1850 2 50 ~ 0 DEVSELr1\n Text Notes 1450 2000 2 50 ~ 0 DEVSELr2 Wire Wire Line 4300 2000 5650 2000 Wire Wire Line 3050 2000 3100 1900 Wire Wire Line 1600 2000 3050 2000 Wire Wire Line 1600 1850 2950 1850 Wire Wire Line 2950 1850 3000 1750 Wire Wire Line 4150 1750 4200 1850 Wire Wire Line 3000 1750 4150 1750 Wire Wire Line 4200 1850 5650 1850 Text Notes 1450 1400 2 50 ~ 0 PHI0r3 Wire Wire Line 4700 1400 5650 1400 Wire Wire Line 4650 1300 4700 1400 Wire Wire Line 1600 1400 2250 1400 Wire Wire Line 2250 1400 2300 1300 Wire Wire Line 2300 1300 4650 1300 Text Notes 1450 1250 2 50 ~ 0 PHI0r2 Wire Wire Line 4500 1250 5650 1250 Wire Wire Line 1600 1250 2050 1250 Wire Wire Line 2050 1250 2100 1150 Wire Wire Line 1600 1100 1950 1100 Wire Wire Line 1950 1100 2000 1000 Text Notes 1450 1100 2 50 ~ 0 PHI0r1 Wire Wire Line 4100 850 5650 850 Wire Wire Line 4050 950 4100 850 Wire Wire Line 3100 1900 4250 1900 Wire Wire Line 4250 1900 4300 2000 Wire Wire Line 2100 1150 4450 1150 Wire Wire Line 4450 1150 4500 1250 Wire Wire Line 4400 1100 5650 1100 Wire Wire Line 4350 1000 4400 1100 Wire Wire Line 2000 1000 4350 1000 Text Notes 5550 1700 0 50 ~ 0 0 Wire Wire Line 5450 1700 5500 1600 Wire Wire Line 5450 1600 5500 1700 Wire Wire Line 5500 1700 5650 1700 Wire Wire Line 5500 1600 5650 1600 Wire Wire Line 5500 550 5500 650 Wire Wire Line 5500 650 5600 650 Wire Wire Line 5600 650 5600 550 Wire Wire Line 5600 550 5650 550 Wire Wire Line 5400 550 5500 550 Text Notes 5300 2450 0 50 ~ 0 NOP Wire Wire Line 5250 2450 5300 2350 Wire Wire Line 5250 2350 5300 2450 Wire Wire Line 5300 2450 5450 2450 Wire Wire Line 5300 2350 5450 2350 Text Notes 5500 2450 0 50 ~ 0 NOP Wire Wire Line 5450 2450 5500 2350 Wire Wire Line 5450 2350 5500 2450 Wire Wire Line 5500 2450 5650 2450 Wire Wire Line 5500 2350 5650 2350 Text Notes 5300 2750 0 50 ~ 0 NOP Wire Wire Line 5250 2750 5300 2650 Wire Wire Line 5250 2650 5300 2750 Wire Wire Line 5300 2750 5450 2750 Wire Wire Line 5300 2650 5450 2650 Text Notes 5500 2750 0 50 ~ 0 NOP Wire Wire Line 5450 2750 5500 2650 Wire Wire Line 5450 2650 5500 2750 Wire Wire Line 5500 2750 5650 2750 Wire Wire Line 5500 2650 5650 2650 Text Notes 4350 1700 0 50 ~ 0 0 Text Notes 4550 1700 0 50 ~ 0 0 Text Notes 3500 3050 0 50 ~ 0 WR Text Notes 2900 3050 0 50 ~ 0 NOP Text Notes 3100 3050 0 50 ~ 0 NOP Wire Wire Line 4700 2950 4850 2950 Wire Wire Line 4700 3050 4850 3050 Wire Wire Line 4650 2950 4700 3050 Wire Wire Line 4650 3050 4700 2950 Text Notes 4700 3050 0 50 ~ 0 NOP Wire Wire Line 4650 2900 4700 2800 Wire Wire Line 4700 2800 5050 2800 Wire Wire Line 5050 2800 5100 2900 Wire Wire Line 5100 2900 5650 2900 Wire Wire Line 1650 3050 1600 3050 Wire Wire Line 1650 2950 1600 2950 Text Notes 1450 2900 2 50 ~ 0 CKE (wr) Text Notes 1450 3050 2 50 ~ 0 CMD (wr) Wire Wire Line 2100 2950 2250 2950 Wire Wire Line 2100 3050 2250 3050 Text Notes 2100 3050 0 50 ~ 0 NOP Wire Wire Line 5100 2950 5250 2950 Wire Wire Line 5100 3050 5250 3050 Wire Wire Line 5050 2950 5100 3050 Wire Wire Line 5050 3050 5100 2950 Text Notes 5100 3050 0 50 ~ 0 NOP Text Notes 1700 3050 0 50 ~ 0 NOP Wire Wire Line 2300 2950 2450 2950 Wire Wire Line 2850 2950 2900 3050 Wire Wire Line 2300 3050 2450 3050 Wire Wire Line 2850 3050 2900 2950 Wire Wire Line 2250 2950 2300 3050 Wire Wire Line 2250 3050 2300 2950 Wire Wire Line 1900 2950 2050 2950 Wire Wire Line 2050 2950 2100 3050 Wire Wire Line 1900 3050 2050 3050 Wire Wire Line 2050 3050 2100 2950 Wire Wire Line 1700 2950 1850 2950 Wire Wire Line 1850 2950 1900 3050 Wire Wire Line 1700 3050 1850 3050 Wire Wire Line 1850 3050 1900 2950 Wire Wire Line 1650 2950 1700 3050 Wire Wire Line 1650 3050 1700 2950 Text Notes 2300 3050 0 50 ~ 0 NOP Wire Wire Line 3100 2950 3250 2950 Wire Wire Line 3250 2950 3300 3050 Wire Wire Line 3100 3050 3250 3050 Wire Wire Line 3250 3050 3300 2950 Wire Wire Line 2900 2950 3050 2950 Wire Wire Line 3050 2950 3100 3050 Wire Wire Line 2900 3050 3050 3050 Wire Wire Line 3050 3050 3100 2950 Wire Wire Line 3500 2950 3650 2950 Wire Wire Line 3500 3050 3650 3050 Text Notes 1900 3050 0 50 ~ 0 NOP Wire Wire Line 3900 2950 4050 2950 Wire Wire Line 3900 3050 4050 3050 Wire Wire Line 3650 2950 3700 3050 Wire Wire Line 3650 3050 3700 2950 Wire Wire Line 4100 2950 4250 2950 Wire Wire Line 4100 3050 4250 3050 Wire Wire Line 4050 2950 4100 3050 Wire Wire Line 4050 3050 4100 2950 Text Notes 4100 3050 0 50 ~ 0 NOP Wire Wire Line 4300 2950 4450 2950 Wire Wire Line 4300 3050 4450 3050 Wire Wire Line 4250 2950 4300 3050 Wire Wire Line 4250 3050 4300 2950 Text Notes 4300 3050 0 50 ~ 0 NOP Wire Wire Line 4500 2950 4650 2950 Wire Wire Line 4500 3050 4650 3050 Wire Wire Line 4450 2950 4500 3050 Wire Wire Line 4450 3050 4500 2950 Text Notes 4500 3050 0 50 ~ 0 NOP Wire Wire Line 4850 2950 4900 3050 Wire Wire Line 4850 3050 4900 2950 Wire Wire Line 2500 3050 2650 3050 Wire Wire Line 2700 2950 2850 2950 Wire Wire Line 2700 3050 2850 3050 Wire Wire Line 2650 2950 2700 3050 Wire Wire Line 2650 3050 2700 2950 Wire Wire Line 2450 2950 2500 3050 Wire Wire Line 2450 3050 2500 2950 Text Notes 2700 3050 0 50 ~ 0 NOP Wire Wire Line 4050 3700 4900 3700 Wire Wire Line 1600 3250 3000 3250 Wire Wire Line 3000 3250 3050 3200 Wire Wire Line 3000 3250 3050 3300 Wire Wire Line 3450 3650 4000 3650 Wire Wire Line 3450 3750 4000 3750 Wire Wire Line 3200 3200 3250 3250 Wire Wire Line 3200 3300 3250 3250 Wire Wire Line 3250 3250 3450 3250 Connection ~ 3000 3250 Connection ~ 3250 3250 Wire Wire Line 3400 3650 3450 3750 Wire Wire Line 3400 3750 3450 3650 Wire Wire Line 4000 3650 4050 3700 Wire Wire Line 4000 3750 4050 3700 Connection ~ 4050 3700 Text Notes 1450 3750 2 50 ~ 0 MD Text Notes 1450 3450 2 50 ~ 0 RD Text Notes 1450 3300 2 50 ~ 0 SD Text Notes 4900 3050 0 40 ~ 0 AREF Wire Wire Line 4900 3050 5050 3050 Wire Wire Line 4900 2950 5050 2950 Text Notes 1600 4050 0 50 ~ 0 ROMSPC <= A[15:12]==4’hC && A[11:8]!=4’h0 (use ROMSPCr2)\nRAMSPC <= A[15:12]==4’hC && A[11:8]==4’h0 && A[7] && A[7:0]!=4’h8 (use RAMSPCr2) Text Notes 5300 3050 0 50 ~ 0 NOP Wire Wire Line 5250 3050 5300 2950 Wire Wire Line 5250 2950 5300 3050 Wire Wire Line 5300 3050 5450 3050 Wire Wire Line 5300 2950 5450 2950 Text Notes 5500 3050 0 50 ~ 0 NOP Wire Wire Line 5450 3050 5500 2950 Wire Wire Line 5450 2950 5500 3050 Wire Wire Line 5500 3050 5650 3050 Wire Wire Line 5500 2950 5650 2950 Wire Wire Line 3250 3350 3550 3350 Wire Wire Line 3250 3450 3550 3450 Text Notes 1450 3600 2 50 ~ 0 PD Wire Wire Line 3350 3500 3850 3500 Wire Wire Line 3350 3600 3850 3600 Wire Wire Line 3250 3350 3200 3400 Wire Wire Line 3200 3400 3250 3450 Wire Wire Line 3200 3650 3250 3750 Wire Wire Line 3200 3750 3250 3650 Wire Wire Line 3350 3650 3400 3750 Wire Wire Line 3350 3750 3400 3650 Wire Wire Line 3300 3650 3350 3750 Wire Wire Line 3300 3750 3350 3650 Wire Wire Line 3250 3650 3300 3750 Wire Wire Line 3250 3750 3300 3650 Wire Wire Line 3000 3650 3050 3750 Wire Wire Line 3000 3750 3050 3650 Wire Wire Line 3150 3650 3200 3750 Wire Wire Line 3150 3750 3200 3650 Wire Wire Line 3100 3650 3150 3750 Wire Wire Line 3100 3750 3150 3650 Wire Wire Line 3050 3650 3100 3750 Wire Wire Line 3050 3750 3100 3650 Wire Wire Line 2950 3650 3000 3750 Wire Wire Line 2950 3750 3000 3650 Wire Wire Line 2750 3650 2800 3750 Wire Wire Line 2750 3750 2800 3650 Wire Wire Line 2900 3650 2950 3750 Wire Wire Line 2900 3750 2950 3650 Wire Wire Line 2850 3650 2900 3750 Wire Wire Line 2850 3750 2900 3650 Wire Wire Line 2800 3650 2850 3750 Wire Wire Line 2800 3750 2850 3650 Wire Wire Line 2550 3650 2600 3750 Wire Wire Line 2550 3750 2600 3650 Wire Wire Line 2700 3650 2750 3750 Wire Wire Line 2700 3750 2750 3650 Wire Wire Line 2650 3650 2700 3750 Wire Wire Line 2650 3750 2700 3650 Wire Wire Line 2600 3650 2650 3750 Wire Wire Line 2600 3750 2650 3650 Wire Wire Line 2500 3650 2550 3750 Wire Wire Line 2500 3750 2550 3650 Wire Wire Line 2300 3650 2350 3750 Wire Wire Line 2300 3750 2350 3650 Wire Wire Line 2450 3650 2500 3750 Wire Wire Line 2450 3750 2500 3650 Wire Wire Line 2400 3650 2450 3750 Wire Wire Line 2400 3750 2450 3650 Wire Wire Line 2350 3650 2400 3750 Wire Wire Line 2350 3750 2400 3650 Wire Wire Line 2100 3650 2150 3750 Wire Wire Line 2100 3750 2150 3650 Wire Wire Line 2250 3650 2300 3750 Wire Wire Line 2250 3750 2300 3650 Wire Wire Line 2200 3650 2250 3750 Wire Wire Line 2200 3750 2250 3650 Wire Wire Line 2150 3650 2200 3750 Wire Wire Line 2150 3750 2200 3650 Wire Wire Line 2050 3650 2100 3750 Wire Wire Line 2050 3750 2100 3650 Wire Wire Line 1850 3650 1900 3750 Wire Wire Line 1850 3750 1900 3650 Wire Wire Line 2000 3650 2050 3750 Wire Wire Line 2000 3750 2050 3650 Wire Wire Line 1950 3650 2000 3750 Wire Wire Line 1950 3750 2000 3650 Wire Wire Line 1900 3650 1950 3750 Wire Wire Line 1900 3750 1950 3650 Wire Wire Line 1800 3650 1850 3750 Wire Wire Line 1800 3750 1850 3650 Wire Wire Line 1750 3650 1800 3750 Wire Wire Line 1750 3750 1800 3650 Wire Wire Line 1700 3650 1750 3750 Wire Wire Line 1700 3750 1750 3650 Wire Wire Line 3200 3200 3050 3200 Wire Wire Line 3050 3300 3200 3300 Wire Wire Line 1650 3650 1700 3750 Wire Wire Line 1650 3750 1700 3650 Wire Wire Line 1600 3650 1650 3750 Wire Wire Line 1600 3750 1650 3650 Connection ~ 3300 3550 Wire Wire Line 3300 3550 2850 3550 Wire Wire Line 3300 3550 3350 3600 Wire Wire Line 3350 3500 3300 3550 Wire Wire Line 3200 3400 2700 3400 Connection ~ 3200 3400 Wire Wire Line 3300 2950 3450 2950 Wire Wire Line 3300 3050 3450 3050 Text Notes 3300 3050 0 50 ~ 0 ACT Wire Wire Line 3450 2950 3500 3050 Wire Wire Line 3450 3050 3500 2950 Wire Wire Line 2500 2950 2650 2950 Text Notes 2500 3050 0 50 ~ 0 NOP Wire Wire Line 3900 2900 4650 2900 Wire Wire Line 3050 2900 3100 2800 Wire Wire Line 1600 2900 3050 2900 Wire Wire Line 3850 2800 3900 2900 Wire Wire Line 3100 2800 3850 2800 Wire Wire Line 3700 2950 3850 2950 Wire Wire Line 3700 3050 3850 3050 Text Notes 3700 3050 0 50 ~ 0 NOP Wire Wire Line 3850 2950 3900 3050 Wire Wire Line 3850 3050 3900 2950 Wire Wire Line 1600 2150 4650 2150 Text Notes 1450 2150 2 50 ~ 0 CKE (idle,rd) Wire Wire Line 4650 2150 4700 2050 Wire Wire Line 4700 2050 5050 2050 Wire Wire Line 5050 2050 5100 2150 Wire Wire Line 5100 2150 5650 2150 Wire Wire Line 3050 2300 1600 2300 Wire Wire Line 3050 2300 3100 2200 Wire Wire Line 3100 2200 3250 2200 Wire Wire Line 3250 2200 3300 2300 Wire Wire Line 3300 2300 4650 2300 Text Notes 3900 3050 0 50 ~ 0 NOP Text Notes 2900 2750 0 50 ~ 0 NOP Text Notes 3750 1700 0 50 ~ 0 0 Text Notes 3950 1700 0 50 ~ 0 0 $EndSCHEMATC