PPU pinout: Difference between revisions
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==S-PPU1== | ==S-PPU1== | ||
===Pinout=== | ===Pinout=== | ||
^ | |||
/ \ | |||
/ \ | |||
/ \ | |||
TST1 -> / 1 100 \ <- SYSTEM CLK | |||
TST0 -> / 2 99 \ <- TST2 | |||
/PRD -> / 3 (*) 98 \ <- /RESET | |||
/PWR -> / 4 97 \ <- /PIXEL CLK IN | |||
PA7 -> / 5 96 \ -- GND | |||
PA6 -> / 6 95 \ <> FIELD | |||
PA5 -> / 7 94 \ -> /OVER | |||
PA4 -> / 8 93 \ -> /PIXEL CLK OUT | |||
PA3 -> / 9 92 \ <> /HCLD | |||
PA2 -> / 10 91 \ <> /VCLD | |||
PA1 -> / 11 90 \ -> COLOR0 | |||
PA0 -> / 12 89 \ -> COLOR1 | |||
+5V -- / 13 88 \ -> COLOR2 | |||
CPU D7 <> / 14 87 \ -> PRIO0 | |||
CPU D6 <> / 15 86 \ -> PRIO1 | |||
CPU D5 <> / 16 85 \ -> CHR0 | |||
CPU D4 <> / 17 84 \ -> CHR1 | |||
CPU D3 <> / 18 83 \ -> CHR2 | |||
CPU D2 <> / 19 82 \ -> CHR3 | |||
CPU D1 <> / 20 81 \ -- +5V | |||
CPU D0 <> / 21 \ | |||
GND -- / 22 / | |||
HVCMODE -> / 23 80 / -> /VRD | |||
PALMODE -> / 24 79 / -> /VBWR | |||
/MASTER -> / 25 78 / -> /VAWR | |||
/EXTSYNC -> / 26 Nintendo 5C77 77 / -- GND | |||
GND -- / 27 Package QFP-100, 0.65mm pitch 76 / -> VAA0 | |||
VDB0 <> / 28 75 / -> VAA1 | |||
VDB1 <> / 29 S-PPU1 74 / -> VAA2 | |||
VDB2 <> / 30 73 / -> VAA3 | |||
/ 72 / -> VAA4 | |||
\ 71 / -> VAA5 | |||
VDB3 <> \ 31 70 / -> VAA6 | |||
VDB4 <> \ 32 69 / -> VAA7 | |||
VDB5 <> \ 33 68 / -> VAA8 | |||
VDB6 <> \ 34 67 / -> VAA9 | |||
VDB7 <> \ 35 66 / -> VAA10 | |||
+5V -- \ 36 65 / -> VAA11 | |||
VDA0 <> \ 37 64 / -> VAA12 Orientation: | |||
VDA1 <> \ 38 63 / -> VAA13 -------------------- | |||
VDA2 <> \ 39 62 / -- +5V 80 51 | |||
VDA3 <> \ 40 61 / -> VAB0 | | | |||
VDA4 <> \ 41 60 / -> VAB1 .-----------. | |||
VDA5 <> \ 42 59 / -> VAB2 81-| Nintendo O|-50 | |||
VDA6 <> \ 43 58 / -> VAB3 | S-PPU1 | | |||
VDA7 <> \ 44 57 / -> VAB4 100-|@ 5C77 |-31 | |||
GND -- \ 45 56 / -> VAB5 '-----------' | |||
VA15 <- \ 46 55 / -> VAB6 | | | |||
VA14 <- \ 47 O 54 / -> VAB7 01 30 | |||
VAB13 <- \ 48 53 / -> VAB8 | |||
VAB12 <- \ 49 52 / -> VAB9 Legend: | |||
VAB11 <- \ 50 51 / -> VAB10 ---------------------------- | |||
\ / --[5C77]-- Power, n/a | |||
\ / ->[5C77]<- 5C77 input | |||
\ / <-[5C77]-> 5C77 output | |||
V <>[5C77]<> Bidirectional | |||
??[5C77]?? Unknown | |||
==S-PPU2== | |||
===Pinout=== | |||
_____ | |||
/ \ | / \ | ||
/BURST <- / 1 100 \ -> /CSYNC | |||
/PED <- / 2 99 \ -- GND | |||
COLORBURST CLK <- / 3 98 \ <- HVCMODE | |||
/TRANSPARENT <> / 4 97 \ -> B | |||
+5V -- / 5 96 \ -> G | |||
/PWR -> / 6 95 \ -> R | |||
/PRD -> / 7 94 \ -- +5VA | |||
CPU D7 <> / 8 93 \ <- DIGITAL VIDEO ENABLE | |||
CPU D6 <> / 9 92 \ <> TST14 | |||
CPU D5 <> / 10 91 \ <> TST13 | |||
CPU D4 <> / 11 90 \ <> TST12 | |||
CPU D3 <> / 12 89 \ <> TST11 | |||
CPU D2 <> / 13 88 \ <> TST10 | |||
CPU D1 <> / 14 87 \ <> TST9 | |||
CPU D0 <> / 15 86 \ <> TST8 | |||
GND -- / 16 85 \ <> TST7 | |||
PA7 -> / 17 84 \ <> TST6 | |||
PA6 -> / 18 83 \ -- +5V | |||
PA5 -> / 19 82 \ <> TST5 | |||
PA4 -> / 20 81 \ <> TST4 | |||
PA3 -> / 21 \ | |||
PA2 -> / 22 O / | |||
PA1 -> / 23 80 / <> TST3 | |||
PA0 -> / 24 79 / <> TST2 | |||
HBLANK <- / 25 78 / <> TST1 | |||
VBLANK <- / 26 Nintendo 5C78 77 / <> TST0 | |||
/PIXEL CLK OUT <- / 27 Package QFP-100, 0.65mm pitch 76 / <- EXT7 | |||
/RESOUT1 <- / 28 75 / <- EXT6 | |||
/EXTLATCH -> / 29 S-PPU2 74 / <- EXT5 | |||
PALMODE -> / 30 73 / <- EXT4 | |||
/ | / O 72 / <- EXT3 | ||
\ 71 / - | \ 71 / <- EXT2 | ||
SYSTEM CLK -> \ 31 70 / <- EXT1 | |||
+5V -- \ 32 69 / <- EXT0 | |||
/RESOUT0 <- \ 33 68 / -- GND | |||
/RESET -> \ 34 67 / <- VDA7 | |||
GND -- \ 35 66 / <- VDA6 | |||
FIELD -> \ 36 65 / <- VDA5 | |||
/OVER1 -> \ 37 64 / <- VDA4 Orientation: | |||
/PIXEL CLK IN -> \ 38 63 / <- VDA3 -------------------- | |||
/HCLD -> \ 39 62 / <- VDA2 80 51 | |||
/VCLD -> \ 40 61 / <- VDA1 | | | |||
COLOR0 -> \ 41 60 / <- VDA0 .-----------. | |||
COLOR1 -> \ 42 59 / -- +5V 81-|O Nintendo |-50 | |||
COLOR2 -> \ 43 58 / <- VDB7 | S-PPU2 | | |||
PRIO0 -> \ 44 57 / <- VDB6 100-| 5C78 O|-31 | |||
PRIO1 -> \ 45 56 / <- VDB5 \-----------' | |||
CHR0 -> \ 46 55 / <- VDB4 | | | |||
CHR1 -> \ 47 54 / <- VDB3 01 30 | |||
CHR2 -> \ 48 53 / <- VDB2 | |||
CHR3 -> \ 49 52 / <- VDB1 Legend: | |||
/OVER2 -> \ 50 51 / <- VDB0 ---------------------------- | |||
\ / --[ | \ / --[5C78]-- Power, n/a | ||
\ / ->[ | \ / ->[5C78]<- 5C78 input | ||
\ / <-[ | \ / <-[5C78]-> 5C78 output | ||
V <>[ | V <>[5C78]<> Bidirectional | ||
??[5C78]?? Unknown | |||
===Signal descriptions=== | |||
* '''COLORBURST CLK''': 3.58 MHz clock. | |||
* '''/PIXEL CLK IN, /PIXEL CLK OUT''': 5.37 MHz dot clock. In comes from S-PPU1. Out goes to expansion port pin 22. | |||
* '''SYSTEM CLK''': 21.47727 MHz clock. | |||
* '''/RESOUT0''': S-PPU1 reset. | |||
* '''/RESOUT1''': The main reset signal, connected to the CPU, APU, cartridge, and expansion port. | |||
* '''/RESET''': Reset from CIC. | |||
* '''/EXTLATCH''': Controls H/V counter latching. Normally connected to joypad IO D7, but connected instead on the Sharp SF-1 TV to joypad 2 D1. Can be used with a light pen. | |||
* '''/OVER1, /OVER2''': /OVER from S-PPU1. | |||
* '''/TRANSPARENT''': This is believed to be high whenever an opaque (sprite or tilemap) pixel is drawn. | |||
* '''EXT7..0''': Video input, connected to VDB7..0. | |||
* '''DIGITAL VIDEO ENABLE''': When high, TST4..0, TST9..5, and TST14..10 are digital R4..0, G4..0, and B4..0 output. For correct digital video output, this should be connected to /OVER.<ref>[https://shmups.system11.org/viewtopic.php?f=6&t=66597 Shmups forum thread]: Sharp analog RGB for the 3-Chip SNES using digital signals</ref> As sold, this is connected to ground. | |||
* '''TST14..12''': When DIGITAL VIDEO ENABLE is low, these control other kinds of data that can be outputted over the TST pins. Output correlated with VRAM accesses has been observed.<ref>[https://circuit-board.de/forum/index.php/Thread/25396-SNES-Chips-decapped-2PPU-1CHIP-APU-DSP/?postID=702636#post702636 circuit-board forum thread]: SNES-Chips decapped (2PPU, 1CHIP, APU, DSP)</ref> As sold, these are connected to ground. | |||
==References== | |||
Latest revision as of 23:55, 31 May 2024
S-PPU1
Pinout
^
/ \
/ \
/ \
TST1 -> / 1 100 \ <- SYSTEM CLK
TST0 -> / 2 99 \ <- TST2
/PRD -> / 3 (*) 98 \ <- /RESET
/PWR -> / 4 97 \ <- /PIXEL CLK IN
PA7 -> / 5 96 \ -- GND
PA6 -> / 6 95 \ <> FIELD
PA5 -> / 7 94 \ -> /OVER
PA4 -> / 8 93 \ -> /PIXEL CLK OUT
PA3 -> / 9 92 \ <> /HCLD
PA2 -> / 10 91 \ <> /VCLD
PA1 -> / 11 90 \ -> COLOR0
PA0 -> / 12 89 \ -> COLOR1
+5V -- / 13 88 \ -> COLOR2
CPU D7 <> / 14 87 \ -> PRIO0
CPU D6 <> / 15 86 \ -> PRIO1
CPU D5 <> / 16 85 \ -> CHR0
CPU D4 <> / 17 84 \ -> CHR1
CPU D3 <> / 18 83 \ -> CHR2
CPU D2 <> / 19 82 \ -> CHR3
CPU D1 <> / 20 81 \ -- +5V
CPU D0 <> / 21 \
GND -- / 22 /
HVCMODE -> / 23 80 / -> /VRD
PALMODE -> / 24 79 / -> /VBWR
/MASTER -> / 25 78 / -> /VAWR
/EXTSYNC -> / 26 Nintendo 5C77 77 / -- GND
GND -- / 27 Package QFP-100, 0.65mm pitch 76 / -> VAA0
VDB0 <> / 28 75 / -> VAA1
VDB1 <> / 29 S-PPU1 74 / -> VAA2
VDB2 <> / 30 73 / -> VAA3
/ 72 / -> VAA4
\ 71 / -> VAA5
VDB3 <> \ 31 70 / -> VAA6
VDB4 <> \ 32 69 / -> VAA7
VDB5 <> \ 33 68 / -> VAA8
VDB6 <> \ 34 67 / -> VAA9
VDB7 <> \ 35 66 / -> VAA10
+5V -- \ 36 65 / -> VAA11
VDA0 <> \ 37 64 / -> VAA12 Orientation:
VDA1 <> \ 38 63 / -> VAA13 --------------------
VDA2 <> \ 39 62 / -- +5V 80 51
VDA3 <> \ 40 61 / -> VAB0 | |
VDA4 <> \ 41 60 / -> VAB1 .-----------.
VDA5 <> \ 42 59 / -> VAB2 81-| Nintendo O|-50
VDA6 <> \ 43 58 / -> VAB3 | S-PPU1 |
VDA7 <> \ 44 57 / -> VAB4 100-|@ 5C77 |-31
GND -- \ 45 56 / -> VAB5 '-----------'
VA15 <- \ 46 55 / -> VAB6 | |
VA14 <- \ 47 O 54 / -> VAB7 01 30
VAB13 <- \ 48 53 / -> VAB8
VAB12 <- \ 49 52 / -> VAB9 Legend:
VAB11 <- \ 50 51 / -> VAB10 ----------------------------
\ / --[5C77]-- Power, n/a
\ / ->[5C77]<- 5C77 input
\ / <-[5C77]-> 5C77 output
V <>[5C77]<> Bidirectional
??[5C77]?? Unknown
S-PPU2
Pinout
_____
/ \
/BURST <- / 1 100 \ -> /CSYNC
/PED <- / 2 99 \ -- GND
COLORBURST CLK <- / 3 98 \ <- HVCMODE
/TRANSPARENT <> / 4 97 \ -> B
+5V -- / 5 96 \ -> G
/PWR -> / 6 95 \ -> R
/PRD -> / 7 94 \ -- +5VA
CPU D7 <> / 8 93 \ <- DIGITAL VIDEO ENABLE
CPU D6 <> / 9 92 \ <> TST14
CPU D5 <> / 10 91 \ <> TST13
CPU D4 <> / 11 90 \ <> TST12
CPU D3 <> / 12 89 \ <> TST11
CPU D2 <> / 13 88 \ <> TST10
CPU D1 <> / 14 87 \ <> TST9
CPU D0 <> / 15 86 \ <> TST8
GND -- / 16 85 \ <> TST7
PA7 -> / 17 84 \ <> TST6
PA6 -> / 18 83 \ -- +5V
PA5 -> / 19 82 \ <> TST5
PA4 -> / 20 81 \ <> TST4
PA3 -> / 21 \
PA2 -> / 22 O /
PA1 -> / 23 80 / <> TST3
PA0 -> / 24 79 / <> TST2
HBLANK <- / 25 78 / <> TST1
VBLANK <- / 26 Nintendo 5C78 77 / <> TST0
/PIXEL CLK OUT <- / 27 Package QFP-100, 0.65mm pitch 76 / <- EXT7
/RESOUT1 <- / 28 75 / <- EXT6
/EXTLATCH -> / 29 S-PPU2 74 / <- EXT5
PALMODE -> / 30 73 / <- EXT4
/ O 72 / <- EXT3
\ 71 / <- EXT2
SYSTEM CLK -> \ 31 70 / <- EXT1
+5V -- \ 32 69 / <- EXT0
/RESOUT0 <- \ 33 68 / -- GND
/RESET -> \ 34 67 / <- VDA7
GND -- \ 35 66 / <- VDA6
FIELD -> \ 36 65 / <- VDA5
/OVER1 -> \ 37 64 / <- VDA4 Orientation:
/PIXEL CLK IN -> \ 38 63 / <- VDA3 --------------------
/HCLD -> \ 39 62 / <- VDA2 80 51
/VCLD -> \ 40 61 / <- VDA1 | |
COLOR0 -> \ 41 60 / <- VDA0 .-----------.
COLOR1 -> \ 42 59 / -- +5V 81-|O Nintendo |-50
COLOR2 -> \ 43 58 / <- VDB7 | S-PPU2 |
PRIO0 -> \ 44 57 / <- VDB6 100-| 5C78 O|-31
PRIO1 -> \ 45 56 / <- VDB5 \-----------'
CHR0 -> \ 46 55 / <- VDB4 | |
CHR1 -> \ 47 54 / <- VDB3 01 30
CHR2 -> \ 48 53 / <- VDB2
CHR3 -> \ 49 52 / <- VDB1 Legend:
/OVER2 -> \ 50 51 / <- VDB0 ----------------------------
\ / --[5C78]-- Power, n/a
\ / ->[5C78]<- 5C78 input
\ / <-[5C78]-> 5C78 output
V <>[5C78]<> Bidirectional
??[5C78]?? Unknown
Signal descriptions
- COLORBURST CLK: 3.58 MHz clock.
- /PIXEL CLK IN, /PIXEL CLK OUT: 5.37 MHz dot clock. In comes from S-PPU1. Out goes to expansion port pin 22.
- SYSTEM CLK: 21.47727 MHz clock.
- /RESOUT0: S-PPU1 reset.
- /RESOUT1: The main reset signal, connected to the CPU, APU, cartridge, and expansion port.
- /RESET: Reset from CIC.
- /EXTLATCH: Controls H/V counter latching. Normally connected to joypad IO D7, but connected instead on the Sharp SF-1 TV to joypad 2 D1. Can be used with a light pen.
- /OVER1, /OVER2: /OVER from S-PPU1.
- /TRANSPARENT: This is believed to be high whenever an opaque (sprite or tilemap) pixel is drawn.
- EXT7..0: Video input, connected to VDB7..0.
- DIGITAL VIDEO ENABLE: When high, TST4..0, TST9..5, and TST14..10 are digital R4..0, G4..0, and B4..0 output. For correct digital video output, this should be connected to /OVER.[1] As sold, this is connected to ground.
- TST14..12: When DIGITAL VIDEO ENABLE is low, these control other kinds of data that can be outputted over the TST pins. Output correlated with VRAM accesses has been observed.[2] As sold, these are connected to ground.
References
- ↑ Shmups forum thread: Sharp analog RGB for the 3-Chip SNES using digital signals
- ↑ circuit-board forum thread: SNES-Chips decapped (2PPU, 1CHIP, APU, DSP)
