Bandai LZ93D50 pinout: Difference between revisions
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(create from http://w.livedoor.jp/famicomcartridge/d/Bandai%20LZ93D50%20standard , Bandai BA-JUMP2 , Bandai Datach) |
m (try to be more consistent. Describe variants' changes more concisely.) |
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| Line 3: | Line 3: | ||
.---\/---. | .---\/---. | ||
?? | 1 52 | -- +5V | ?? | 1 52 | -- +5V | ||
?? | 2 51 | -> | ?? | 2 51 | -> PRG RAM /CS | ||
PRG /CE <- | 3 50 | ?? ? | PRG /CE <- | 3 50 | ?? ? | ||
+5V ?? | 4 49 | ?? +5V | +5V ?? | 4 49 | ?? +5V | ||
| Line 16: | Line 16: | ||
CPU D0 -> | 13 40 | <> CPU D4 | CPU D0 -> | 13 40 | <> CPU D4 | ||
CPU D1 -> | 14 39 | <- CPU D3 | CPU D1 -> | 14 39 | <- CPU D3 | ||
CPU D2 -> | 15 38 | -> | CPU D2 -> | 15 38 | -> /IRQ | ||
R/W -> | 16 37 | -> | R/W -> | 16 37 | -> CIRAM A10 | ||
PPU /RD -> | 17 36 | -> CHR A17 | PPU /RD -> | 17 36 | -> CHR A17 | ||
CHR A15 <- | 18 35 | -> CHR A14 | CHR A15 <- | 18 35 | -> CHR A14 | ||
| Line 32: | Line 32: | ||
Bandai's variants of the LZ93D50 are almost as bad as [[MMC1 pinout|MMC1]]. | Bandai's variants of the LZ93D50 are almost as bad as [[MMC1 pinout|MMC1]]. | ||
[[iNES Mapper 153|BA-JUMP2]]: supports PRG RAM instead of I²C, and | [[iNES Mapper 153|BA-JUMP2]]: supports PRG RAM instead of I²C, replaces banked CHR-ROM with unbanked CHR-RAM, and increases PRG max to 512KiB: | ||
PPU /RD -> | 17 36 | -> '''n/c''' | PPU /RD -> | 17 36 | -> '''n/c''' | ||
'''n/c''' <- | 18 35 | -> '''n/c''' | '''n/c''' <- | 18 35 | -> '''n/c''' | ||
| Line 39: | Line 39: | ||
PPU A11 -> | 21 32 | -> '''n/c''' | PPU A11 -> | 21 32 | -> '''n/c''' | ||
'''GND''' -> | 22 31 | -> '''PRG A18''' | '''GND''' -> | 22 31 | -> '''PRG A18''' | ||
'''GND''' -> | 23 30 | -> | '''GND''' -> | 23 30 | -> '''n/c''' | ||
GND -- | 24 29 | <- '''GND''' | GND -- | 24 29 | <- '''GND''' | ||
? ?? | 25 28 | -> '''PRG RAM + | ? ?? | 25 28 | -> '''PRG RAM +CS''' | ||
GND -- | 26 27 | <> '''n/c''' | GND -- | 26 27 | <> '''n/c''' | ||
'--------' | '--------' | ||
[[iNES Mapper 157|Datach Joint ROM System]]: Two separate I²C clocks, and external barcode reader. | [[iNES Mapper 157|Datach Joint ROM System]]: Two separate I²C clocks, replaces banked CHR-ROM with unbanked CHR-RAM, and external barcode reader. | ||
This IC is actually a 52-pin QFP, with a slightly different pin order from the PDIP instantiation. The pertinent changes: | This IC is actually a 52-pin QFP, with a slightly different pin order from the PDIP instantiation. The pertinent changes: | ||
Revision as of 21:11, 31 July 2013
Bandai LZ93D50: 52-pin shrink PDIP (Canonically iNES Mapper 159)
.---\/---.
?? | 1 52 | -- +5V
?? | 2 51 | -> PRG RAM /CS
PRG /CE <- | 3 50 | ?? ?
+5V ?? | 4 49 | ?? +5V
M2 -> | 5 48 | ?? ?
CPU A13 -> | 6 47 | -> PRG A17
CPU A14 -> | 7 46 | -> PRG A15
CPU A3 -> | 8 45 | -> PRG A14
CPU A2 -> | 9 44 | -> PRG A16
CPU A1 -> | 10 43 | <- CPU D7
CPU A0 -> | 11 42 | <- CPU D6
/ROMSEL -> | 12 41 | <- CPU D5
CPU D0 -> | 13 40 | <> CPU D4
CPU D1 -> | 14 39 | <- CPU D3
CPU D2 -> | 15 38 | -> /IRQ
R/W -> | 16 37 | -> CIRAM A10
PPU /RD -> | 17 36 | -> CHR A17
CHR A15 <- | 18 35 | -> CHR A14
CHR A12 <- | 19 34 | -> CHR A13
PPU A10 -> | 20 33 | -> CHR A11
PPU A11 -> | 21 32 | -> CHR A16
PPU A12 -> | 22 31 | -> CHR A10
PPU A13 -> | 23 30 | -> CHR /CE
GND -- | 24 29 | <- I2C read enable
? ?? | 25 28 | -> I²C SCL
GND -- | 26 27 | <> I²C SDA
'--------'
Bandai's variants of the LZ93D50 are almost as bad as MMC1.
BA-JUMP2: supports PRG RAM instead of I²C, replaces banked CHR-ROM with unbanked CHR-RAM, and increases PRG max to 512KiB:
PPU /RD -> | 17 36 | -> n/c
n/c <- | 18 35 | -> n/c
n/c <- | 19 34 | -> n/c
PPU A10 -> | 20 33 | -> n/c
PPU A11 -> | 21 32 | -> n/c
GND -> | 22 31 | -> PRG A18
GND -> | 23 30 | -> n/c
GND -- | 24 29 | <- GND
? ?? | 25 28 | -> PRG RAM +CS
GND -- | 26 27 | <> n/c
'--------'
Datach Joint ROM System: Two separate I²C clocks, replaces banked CHR-ROM with unbanked CHR-RAM, and external barcode reader.
This IC is actually a 52-pin QFP, with a slightly different pin order from the PDIP instantiation. The pertinent changes:
- I²C SCL is only for the internal EEPROM
- CHR A10 is External I²C SCL
- WRAM /CS drives a tristateable buffer that connects barcode data to CPU D3.
Naruko says PPU A12 is connected to LZ93D50P, so it's not clear why one has to write I²C clock data to only $8000 through $8003, rather than all eight ports.
