FingerPrint GSi U10 Truth Tables

Reverse engineered Apple II hardware

FingerPrint GSi U10 Truth Tables

Output /RELEASE_BUS (pin 12, combinatorial)

LR/W
(pin 1)
Φ1
(pin 9)
/REG_BANK_SEL
(pin 4)
LA1
(pin 8)
LA0
(pin 7)
  /RELEASE_BUS
(pin 12)
0 0 0 0 0   0
0 0 0 0 1   1
0 0 0 1 0   1
0 0 0 1 1   1
0 0 1 0 0   1
0 0 1 0 1   1
0 0 1 1 0   1
0 0 1 1 1   1
0 1 0 0 0   1
0 1 0 0 1   1
0 1 0 1 0   1
0 1 0 1 1   1
0 1 1 0 0   1
0 1 1 0 1   1
0 1 1 1 0   1
0 1 1 1 1   1
1 0 0 0 0   1
1 0 0 0 1   1
1 0 0 1 0   1
1 0 0 1 1   1
1 0 1 0 0   1
1 0 1 0 1   1
1 0 1 1 0   1
1 0 1 1 1   1
1 1 0 0 0   1
1 1 0 0 1   1
1 1 0 1 0   1
1 1 0 1 1   1
1 1 1 0 0   1
1 1 1 0 1   1
1 1 1 1 0   1
1 1 1 1 1   1

Output /ROM2_SEL (pin 13, combinatorial)

LR/W
(pin 1)
Φ1
(pin 9)
/REG_BANK_SEL
(pin 4)
LA1
(pin 8)
LA0
(pin 7)
  /ROM2_SEL
(pin 13)
0 0 0 0 0   1
0 0 0 0 1   0
0 0 0 1 0   1
0 0 0 1 1   1
0 0 1 0 0   1
0 0 1 0 1   1
0 0 1 1 0   1
0 0 1 1 1   1
0 1 0 0 0   1
0 1 0 0 1   1
0 1 0 1 0   1
0 1 0 1 1   1
0 1 1 0 0   1
0 1 1 0 1   1
0 1 1 1 0   1
0 1 1 1 1   1
1 0 0 0 0   1
1 0 0 0 1   1
1 0 0 1 0   1
1 0 0 1 1   1
1 0 1 0 0   1
1 0 1 0 1   1
1 0 1 1 0   1
1 0 1 1 1   1
1 1 0 0 0   1
1 1 0 0 1   1
1 1 0 1 0   1
1 1 0 1 1   1
1 1 1 0 0   1
1 1 1 0 1   1
1 1 1 1 0   1
1 1 1 1 1   1

Output /ROM1_SEL (pin 14, combinatorial)

LR/W
(pin 1)
Φ1
(pin 9)
/REG_BANK_SEL
(pin 4)
LA1
(pin 8)
LA0
(pin 7)
  /ROM1_SEL
(pin 14)
0 0 0 0 0   1
0 0 0 0 1   1
0 0 0 1 0   0
0 0 0 1 1   1
0 0 1 0 0   1
0 0 1 0 1   1
0 0 1 1 0   1
0 0 1 1 1   1
0 1 0 0 0   1
0 1 0 0 1   1
0 1 0 1 0   1
0 1 0 1 1   1
0 1 1 0 0   1
0 1 1 0 1   1
0 1 1 1 0   1
0 1 1 1 1   1
1 0 0 0 0   1
1 0 0 0 1   1
1 0 0 1 0   1
1 0 0 1 1   1
1 0 1 0 0   1
1 0 1 0 1   1
1 0 1 1 0   1
1 0 1 1 1   1
1 1 0 0 0   1
1 1 0 0 1   1
1 1 0 1 0   1
1 1 0 1 1   1
1 1 1 0 0   1
1 1 1 0 1   1
1 1 1 1 0   1
1 1 1 1 1   1

Output CTRL_REG_WR (pin 15, combinatorial)

LR/W
(pin 1)
Φ2out
(pin 5)
/REG_BANK_SEL
(pin 4)
LA1
(pin 8)
LA0
(pin 7)
  CTRL_REG_WR
(pin 15)
0 0 0 0 0   1
0 0 0 0 1   1
0 0 0 1 0   1
0 0 0 1 1   1
0 0 1 0 0   1
0 0 1 0 1   1
0 0 1 1 0   1
0 0 1 1 1   1
0 1 0 0 0   1
0 1 0 0 1   1
0 1 0 1 0   1
0 1 0 1 1   0
0 1 1 0 0   1
0 1 1 0 1   1
0 1 1 1 0   1
0 1 1 1 1   1
1 0 0 0 0   1
1 0 0 0 1   1
1 0 0 1 0   1
1 0 0 1 1   1
1 0 1 0 0   1
1 0 1 0 1   1
1 0 1 1 0   1
1 0 1 1 1   1
1 1 0 0 0   1
1 1 0 0 1   1
1 1 0 1 0   1
1 1 0 1 1   1
1 1 1 0 0   1
1 1 1 0 1   1
1 1 1 1 0   1
1 1 1 1 1   1

Output /CONFIG_RD (pin 16, combinatorial)

LR/W
(pin 1)
/REG_BANK_SEL
(pin 4)
LA1
(pin 8)
LA0
(pin 7)
  /CONFIG_RD
(pin 16)
0 0 0 0   1
0 0 0 1   1
0 0 1 0   1
0 0 1 1   1
0 1 0 0   1
0 1 0 1   1
0 1 1 0   1
0 1 1 1   1
1 0 0 0   0
1 0 0 1   1
1 0 1 0   1
1 0 1 1   1
1 1 0 0   1
1 1 0 1   1
1 1 1 0   1
1 1 1 1   1

Output DMA_R/W (pin 17, combinatorial)

LR/W
(pin 1)
/BUS_HELD
(pin 11)
/ROM_OE
(pin 2)
/SRAM_CE
(pin 3)
/REG_BANK_SEL
(pin 4)
  DMA_R/W
(pin 17)
0 0 0 0 0   1
0 0 0 0 1   1
0 0 0 1 0   1
0 0 0 1 1   1
0 0 1 0 0   1
0 0 1 0 1   1
0 0 1 1 0   1
0 0 1 1 1   0
0 1 0 0 0   1
0 1 0 0 1   1
0 1 0 1 0   1
0 1 0 1 1   1
0 1 1 0 0   1
0 1 1 0 1   1
0 1 1 1 0   1
0 1 1 1 1   1
1 0 0 0 0   1
1 0 0 0 1   1
1 0 0 1 0   1
1 0 0 1 1   1
1 0 1 0 0   1
1 0 1 0 1   1
1 0 1 1 0   1
1 0 1 1 1   1
1 1 0 0 0   1
1 1 0 0 1   1
1 1 0 1 0   1
1 1 0 1 1   1
1 1 1 0 0   1
1 1 1 0 1   1
1 1 1 1 0   1
1 1 1 1 1   1

Output /DATAOUT_EN (pin 18, combinatorial)

LR/W
(pin 1)
Φ1
(pin 9)
/BUS_HELD
(pin 11)
/ROM_OE
(pin 2)
/SRAM_CE
(pin 3)
/REG_BANK_SEL
(pin 4)
  /DATAOUT_EN
(pin 18)
0 0 0 0 0 0   1
0 0 0 0 0 1   1
0 0 0 0 1 0   1
0 0 0 0 1 1   1
0 0 0 1 0 0   1
0 0 0 1 0 1   1
0 0 0 1 1 0   1
0 0 0 1 1 1   0
0 0 1 0 0 0   1
0 0 1 0 0 1   1
0 0 1 0 1 0   1
0 0 1 0 1 1   1
0 0 1 1 0 0   1
0 0 1 1 0 1   1
0 0 1 1 1 0   1
0 0 1 1 1 1   1
0 1 0 0 0 0   1
0 1 0 0 0 1   1
0 1 0 0 1 0   1
0 1 0 0 1 1   1
0 1 0 1 0 0   1
0 1 0 1 0 1   1
0 1 0 1 1 0   1
0 1 0 1 1 1   1
0 1 1 0 0 0   1
0 1 1 0 0 1   1
0 1 1 0 1 0   1
0 1 1 0 1 1   1
0 1 1 1 0 0   1
0 1 1 1 0 1   1
0 1 1 1 1 0   1
0 1 1 1 1 1   1
1 0 0 0 0 0   1
1 0 0 0 0 1   1
1 0 0 0 1 0   1
1 0 0 0 1 1   1
1 0 0 1 0 0   1
1 0 0 1 0 1   1
1 0 0 1 1 0   1
1 0 0 1 1 1   1
1 0 1 0 0 0   1
1 0 1 0 0 1   1
1 0 1 0 1 0   1
1 0 1 0 1 1   1
1 0 1 1 0 0   1
1 0 1 1 0 1   1
1 0 1 1 1 0   1
1 0 1 1 1 1   1
1 1 0 0 0 0   1
1 1 0 0 0 1   1
1 1 0 0 1 0   1
1 1 0 0 1 1   1
1 1 0 1 0 0   1
1 1 0 1 0 1   1
1 1 0 1 1 0   1
1 1 0 1 1 1   1
1 1 1 0 0 0   1
1 1 1 0 0 1   1
1 1 1 0 1 0   1
1 1 1 0 1 1   1
1 1 1 1 0 0   1
1 1 1 1 0 1   1
1 1 1 1 1 0   1
1 1 1 1 1 1   1

Output /DATAIN_EN (pin 19, combinatorial)

LR/W
(pin 1)
Φ1
(pin 9)
/BUS_HELD
(pin 11)
/ROM_OE
(pin 2)
/SRAM_CE
(pin 3)
/REG_BANK_SEL
(pin 4)
LA1
(pin 8)
LA0
(pin 7)
  /DATAIN_EN
(pin 19)
0 0 0 0 0 0 0 0   1
0 0 0 0 0 0 0 1   1
0 0 0 0 0 0 1 0   1
0 0 0 0 0 0 1 1   1
0 0 0 0 0 1 0 0   1
0 0 0 0 0 1 0 1   1
0 0 0 0 0 1 1 0   1
0 0 0 0 0 1 1 1   1
0 0 0 0 1 0 0 0   1
0 0 0 0 1 0 0 1   1
0 0 0 0 1 0 1 0   1
0 0 0 0 1 0 1 1   1
0 0 0 0 1 1 0 0   1
0 0 0 0 1 1 0 1   1
0 0 0 0 1 1 1 0   1
0 0 0 0 1 1 1 1   1
0 0 0 1 0 0 0 0   1
0 0 0 1 0 0 0 1   1
0 0 0 1 0 0 1 0   1
0 0 0 1 0 0 1 1   1
0 0 0 1 0 1 0 0   1
0 0 0 1 0 1 0 1   1
0 0 0 1 0 1 1 0   1
0 0 0 1 0 1 1 1   1
0 0 0 1 1 0 0 0   1
0 0 0 1 1 0 0 1   1
0 0 0 1 1 0 1 0   1
0 0 0 1 1 0 1 1   1
0 0 0 1 1 1 0 0   1
0 0 0 1 1 1 0 1   1
0 0 0 1 1 1 1 0   1
0 0 0 1 1 1 1 1   1
0 0 1 0 0 0 0 0   1
0 0 1 0 0 0 0 1   1
0 0 1 0 0 0 1 0   1
0 0 1 0 0 0 1 1   1
0 0 1 0 0 1 0 0   1
0 0 1 0 0 1 0 1   1
0 0 1 0 0 1 1 0   1
0 0 1 0 0 1 1 1   1
0 0 1 0 1 0 0 0   1
0 0 1 0 1 0 0 1   1
0 0 1 0 1 0 1 0   1
0 0 1 0 1 0 1 1   1
0 0 1 0 1 1 0 0   1
0 0 1 0 1 1 0 1   1
0 0 1 0 1 1 1 0   1
0 0 1 0 1 1 1 1   1
0 0 1 1 0 0 0 0   1
0 0 1 1 0 0 0 1   1
0 0 1 1 0 0 1 0   1
0 0 1 1 0 0 1 1   1
0 0 1 1 0 1 0 0   1
0 0 1 1 0 1 0 1   1
0 0 1 1 0 1 1 0   1
0 0 1 1 0 1 1 1   1
0 0 1 1 1 0 0 0   1
0 0 1 1 1 0 0 1   1
0 0 1 1 1 0 1 0   1
0 0 1 1 1 0 1 1   1
0 0 1 1 1 1 0 0   1
0 0 1 1 1 1 0 1   1
0 0 1 1 1 1 1 0   1
0 0 1 1 1 1 1 1   1
0 1 0 0 0 0 0 0   1
0 1 0 0 0 0 0 1   1
0 1 0 0 0 0 1 0   1
0 1 0 0 0 0 1 1   1
0 1 0 0 0 1 0 0   1
0 1 0 0 0 1 0 1   1
0 1 0 0 0 1 1 0   1
0 1 0 0 0 1 1 1   1
0 1 0 0 1 0 0 0   1
0 1 0 0 1 0 0 1   1
0 1 0 0 1 0 1 0   1
0 1 0 0 1 0 1 1   1
0 1 0 0 1 1 0 0   1
0 1 0 0 1 1 0 1   1
0 1 0 0 1 1 1 0   1
0 1 0 0 1 1 1 1   1
0 1 0 1 0 0 0 0   1
0 1 0 1 0 0 0 1   1
0 1 0 1 0 0 1 0   1
0 1 0 1 0 0 1 1   1
0 1 0 1 0 1 0 0   1
0 1 0 1 0 1 0 1   1
0 1 0 1 0 1 1 0   1
0 1 0 1 0 1 1 1   1
0 1 0 1 1 0 0 0   1
0 1 0 1 1 0 0 1   1
0 1 0 1 1 0 1 0   1
0 1 0 1 1 0 1 1   1
0 1 0 1 1 1 0 0   1
0 1 0 1 1 1 0 1   1
0 1 0 1 1 1 1 0   1
0 1 0 1 1 1 1 1   1
0 1 1 0 0 0 0 0   1
0 1 1 0 0 0 0 1   1
0 1 1 0 0 0 1 0   1
0 1 1 0 0 0 1 1   1
0 1 1 0 0 1 0 0   1
0 1 1 0 0 1 0 1   1
0 1 1 0 0 1 1 0   1
0 1 1 0 0 1 1 1   1
0 1 1 0 1 0 0 0   1
0 1 1 0 1 0 0 1   1
0 1 1 0 1 0 1 0   1
0 1 1 0 1 0 1 1   1
0 1 1 0 1 1 0 0   1
0 1 1 0 1 1 0 1   1
0 1 1 0 1 1 1 0   1
0 1 1 0 1 1 1 1   1
0 1 1 1 0 0 0 0   1
0 1 1 1 0 0 0 1   1
0 1 1 1 0 0 1 0   1
0 1 1 1 0 0 1 1   1
0 1 1 1 0 1 0 0   1
0 1 1 1 0 1 0 1   1
0 1 1 1 0 1 1 0   1
0 1 1 1 0 1 1 1   1
0 1 1 1 1 0 0 0   1
0 1 1 1 1 0 0 1   1
0 1 1 1 1 0 1 0   1
0 1 1 1 1 0 1 1   1
0 1 1 1 1 1 0 0   1
0 1 1 1 1 1 0 1   1
0 1 1 1 1 1 1 0   1
0 1 1 1 1 1 1 1   1
1 0 0 0 0 0 0 0   1
1 0 0 0 0 0 0 1   1
1 0 0 0 0 0 1 0   1
1 0 0 0 0 0 1 1   1
1 0 0 0 0 1 0 0   1
1 0 0 0 0 1 0 1   1
1 0 0 0 0 1 1 0   1
1 0 0 0 0 1 1 1   1
1 0 0 0 1 0 0 0   1
1 0 0 0 1 0 0 1   1
1 0 0 0 1 0 1 0   1
1 0 0 0 1 0 1 1   1
1 0 0 0 1 1 0 0   1
1 0 0 0 1 1 0 1   1
1 0 0 0 1 1 1 0   1
1 0 0 0 1 1 1 1   1
1 0 0 1 0 0 0 0   1
1 0 0 1 0 0 0 1   1
1 0 0 1 0 0 1 0   1
1 0 0 1 0 0 1 1   1
1 0 0 1 0 1 0 0   1
1 0 0 1 0 1 0 1   1
1 0 0 1 0 1 1 0   1
1 0 0 1 0 1 1 1   1
1 0 0 1 1 0 0 0   1
1 0 0 1 1 0 0 1   1
1 0 0 1 1 0 1 0   1
1 0 0 1 1 0 1 1   1
1 0 0 1 1 1 0 0   0
1 0 0 1 1 1 0 1   0
1 0 0 1 1 1 1 0   0
1 0 0 1 1 1 1 1   0
1 0 1 0 0 0 0 0   1
1 0 1 0 0 0 0 1   1
1 0 1 0 0 0 1 0   1
1 0 1 0 0 0 1 1   0
1 0 1 0 0 1 0 0   1
1 0 1 0 0 1 0 1   1
1 0 1 0 0 1 1 0   1
1 0 1 0 0 1 1 1   1
1 0 1 0 1 0 0 0   1
1 0 1 0 1 0 0 1   1
1 0 1 0 1 0 1 0   1
1 0 1 0 1 0 1 1   0
1 0 1 0 1 1 0 0   1
1 0 1 0 1 1 0 1   1
1 0 1 0 1 1 1 0   1
1 0 1 0 1 1 1 1   1
1 0 1 1 0 0 0 0   1
1 0 1 1 0 0 0 1   1
1 0 1 1 0 0 1 0   1
1 0 1 1 0 0 1 1   0
1 0 1 1 0 1 0 0   1
1 0 1 1 0 1 0 1   1
1 0 1 1 0 1 1 0   1
1 0 1 1 0 1 1 1   1
1 0 1 1 1 0 0 0   1
1 0 1 1 1 0 0 1   1
1 0 1 1 1 0 1 0   1
1 0 1 1 1 0 1 1   0
1 0 1 1 1 1 0 0   1
1 0 1 1 1 1 0 1   1
1 0 1 1 1 1 1 0   1
1 0 1 1 1 1 1 1   1
1 1 0 0 0 0 0 0   1
1 1 0 0 0 0 0 1   1
1 1 0 0 0 0 1 0   1
1 1 0 0 0 0 1 1   1
1 1 0 0 0 1 0 0   1
1 1 0 0 0 1 0 1   1
1 1 0 0 0 1 1 0   1
1 1 0 0 0 1 1 1   1
1 1 0 0 1 0 0 0   1
1 1 0 0 1 0 0 1   1
1 1 0 0 1 0 1 0   1
1 1 0 0 1 0 1 1   1
1 1 0 0 1 1 0 0   1
1 1 0 0 1 1 0 1   1
1 1 0 0 1 1 1 0   1
1 1 0 0 1 1 1 1   1
1 1 0 1 0 0 0 0   1
1 1 0 1 0 0 0 1   1
1 1 0 1 0 0 1 0   1
1 1 0 1 0 0 1 1   1
1 1 0 1 0 1 0 0   1
1 1 0 1 0 1 0 1   1
1 1 0 1 0 1 1 0   1
1 1 0 1 0 1 1 1   1
1 1 0 1 1 0 0 0   1
1 1 0 1 1 0 0 1   1
1 1 0 1 1 0 1 0   1
1 1 0 1 1 0 1 1   1
1 1 0 1 1 1 0 0   1
1 1 0 1 1 1 0 1   1
1 1 0 1 1 1 1 0   1
1 1 0 1 1 1 1 1   1
1 1 1 0 0 0 0 0   1
1 1 1 0 0 0 0 1   1
1 1 1 0 0 0 1 0   1
1 1 1 0 0 0 1 1   1
1 1 1 0 0 1 0 0   1
1 1 1 0 0 1 0 1   1
1 1 1 0 0 1 1 0   1
1 1 1 0 0 1 1 1   1
1 1 1 0 1 0 0 0   1
1 1 1 0 1 0 0 1   1
1 1 1 0 1 0 1 0   1
1 1 1 0 1 0 1 1   1
1 1 1 0 1 1 0 0   1
1 1 1 0 1 1 0 1   1
1 1 1 0 1 1 1 0   1
1 1 1 0 1 1 1 1   1
1 1 1 1 0 0 0 0   1
1 1 1 1 0 0 0 1   1
1 1 1 1 0 0 1 0   1
1 1 1 1 0 0 1 1   1
1 1 1 1 0 1 0 0   1
1 1 1 1 0 1 0 1   1
1 1 1 1 0 1 1 0   1
1 1 1 1 0 1 1 1   1
1 1 1 1 1 0 0 0   1
1 1 1 1 1 0 0 1   1
1 1 1 1 1 0 1 0   1
1 1 1 1 1 0 1 1   1
1 1 1 1 1 1 0 0   1
1 1 1 1 1 1 0 1   1
1 1 1 1 1 1 1 0   1
1 1 1 1 1 1 1 1   1