Namcot 163 family pinout: Difference between revisions
From NESdev Wiki
Jump to navigationJump to search
m (Can't be CHR A18, there's only 256kB of address space. Fix up arrows on right side. Ascii art up a diamond instead of a rectangle) |
m (RE'd picture of n129.) |
||
| Line 1: | Line 1: | ||
Namcot 163: 48-pin QFP | 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 | |||
/ \ | / \ | ||
(n) SOUND <- /01 48\ -> CHR A14 (r) | (n) SOUND <- /01 48\ -> CHR A14 (r) | ||
| Line 34: | Line 37: | ||
40 6264 /CE connected to this pin | 40 6264 /CE connected to this pin | ||
44 Might be an enable for CHR RAM, can't find an example of it being used | 44 Might be an enable for CHR RAM, can't find an example of it being used | ||
Revision as of 03:56, 20 June 2012
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
/ \
(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\ -> CHRROM /CE (r)
(r) PRG A16 <- /09 40\ -> *WRAM /CE (w)
(r) PRG A15 <- /10 39\ -> /IRQ (n)
(r) PRG A14 <- /11 38\ <- CHR A10 (n)
(r) PRG A13 <- /12 37\ <- CHR A11 (n)
(s) PRG D7 <-> \13 36/ <- CHR A12 (n)
(s) PRG D6 <-> \14 35/ <- CHR A13 (n)
(s) PRG D5 <-> \15 34/ -- GND?
(s) PRG D4 <-> \16 33/ <- CHR nRD (n)
(s) PRG D3 <-> \17 32/ -- +5V
(s) PRG D2 <-> \18 31/ -- GND
+5v - \19 30/ <- M2 (n)
(s) PRG D1 <-> \20 29/ <- PRG R/W (n,w)
(s) PRG D0 <-> \21 28/ <- PRG /CE (n)
GND - \22 27/ <- PRG A14 (n)
(r) PRG /CE -> \23 26/ <- PRG A13 (n)
(s) PRG A11 -> \24 25/ <- PRG A12 (s)
\ /
\_/
05 also connects to CIRAM A10
19 Some boards connect a battery (through a standard diode switch) to this pin to make the waveform memory nonvolatile
32 Some boards connect a battery to this pin instead
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
