Namcot 163 family pinout: Difference between revisions
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(reread what naruko wrote, fix this) |
m (disconnecting «CIRAM /CE» means lack of ROM nametables, not lack of CHR-RAM.) |
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| Line 42: | Line 42: | ||
01 sound was removed | 01 sound was removed | ||
39 does not provide IRQs | 39 does not provide IRQs | ||
42 does not allow for | 42 does not allow for ROM nametables | ||
Namcot 340: 48-pin QFP (not allocated a mapper) | Namcot 340: 48-pin QFP (not allocated a mapper) | ||
Revision as of 21:46, 12 February 2013
The Namcot 129 and 163 seem to be identical. The Namcot 175 and 340 have minor but vital differences.
Namcot 129 and 163: 48-pin QFP (canonically iNES Mapper 019)
/ \
(n) SOUND <- /01 48\ -> CHR A14 (r)
(r) CHR A13 <- /02 47\ -> CHR A15 (r)
(r) CHR A12 <- /03 46\ -> CHR A16 (r)
(r) CHR A11 <- /04 45\ -> CHR A17 (r)
(s)*CHR A10 <- /05 44\ -> ?
GND - /06 43\ -- +5v
(r) PRG A18 <- /07 42\ -> CIRAM /CE (n)
(r) PRG A17 <- /08 41\ -> CHR ROM /CE (r)
(r) PRG A16 <- /09 40\ -> WRAM /CE (w)
(r) PRG A15 <- /10 39\ -> /IRQ (n)
(r) PRG A14 <- /11 38\ <- PPU A10 (n)
(r) PRG A13 <- /12 37\ <- PPU A11 (n)
(s) CPU D7 <-> \13 36/ <- PPU A12 (n)
(s) CPU D6 <-> \14 35/ <- PPU A13 (n)
(s) CPU D5 <-> \15 34/ -- GND?
(s) CPU D4 <-> \16 33/ <- PPU nRD (n)
(s) CPU D3 <-> \17 32/ -- +5V
(s) CPU D2 <-> \18 31/ -- GND
+5v - \19 30/ <- M2 (n)
(s) CPU D1 <-> \20 29/ <- CPU R/W (n,w)
(s) CPU D0 <-> \21 28/ <- /ROMSEL (n)
GND? - \22 27/ <- CPU A14 (n)
(r) PRG /CE <- \23 26/ <- CPU A13 (n)
(s) CPU A11 -> \24 25/ <- CPU A12 (s)
\ /
\_/
05 also connects to CIRAM A10
19,32,43 Some boards connect a battery (through a standard diode switch) to this pin to make the waveform memory nonvolatile
22 Some boards this is connected to +5V, some to Gnd, so probably an input
30 pull-down resistor present on boards with battery for low-power mode
33 Ground this pin with if CHR's nOE and nCS lines are separate
34 Probably an input instead of a power supply, can't find an example of it being used
40 6264 /CE connected to this pin
44 Might be an enable for CHR RAM, can't find an example of it being used
Namcot 175: 48-pin QFP (canonically iNES Mapper 210)
01 sound was removed 39 does not provide IRQs 42 does not allow for ROM nametables
Namcot 340: 48-pin QFP (not allocated a mapper)
42\ -> ?
41\ -> ?
40\ -> CHR /CE (r)
39\ -> CIRAM A10 (n)
01 sound was also removed.
