VRC7 pinout

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Revision as of 14:55, 12 June 2009 by Banshaku (talk | contribs) (Created page with '<pre> Legend: ------- (s) means this pin connects to the System (r) this only connects to the ROM (w) this is a SRAM/WRAM connection only PRG : these connect to the PRG ROM and/...')
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Legend:
-------

(s) means this pin connects to the System
(r) this only connects to the ROM
(w) this is a SRAM/WRAM connection only
PRG : these connect to the PRG ROM and/or fami's PRG pins
WRAM : this hooks to the WRAM

Note: There is a 3.58Mhz ceramic resonator connected to the "X1" and "X2" 
pins.  it is the three-pin style with internal caps tied to the third pin
which is grounded.
                                  
Chip is physically marked: "VRV VII 053982"

                                  .----\/----.
             *1 (RAM&s) CHR /OE - |01      48| - NC
             *1 (RAM&s) CHR /CE - |02      47| - M2 (s)
                            GND - |03      46| - /CE WRAM (w)
                        (s) R/W - |04      45| - PRG /A15 (s) (aka /CE)
                       (s) /IRQ - |05      44| - PRG ROM /CE (r)
                  (s) CIRAM A11 - |06      43| - Audio Out
                        (s) PD0 - |07      42| - +5V
                        (s) PD1 - |08      41| - NC
                        (s) PD2 - |09      40| - NC
                        (s) PD3 - |10      39| - NC
                        (s) PD4 - |11      38| - NC
                        (s) PD5 - |12      37| - NC
                        (s) PD6 - |13      36| - CHR RAM A12
                        (s) PD7 - |14      35| - CHR RAM A11
                            +5V - |15      34| - CHR RAM A10
                     (s) PRG A5 - |16      33| - CHR A12 (s)
                     Crystal X2 - |17      32| - CHR A11 (s)
                     Crystal X1 - |18      31| - CHR A10 (s)
                     (s) PRG A4 - |19      30| - +5V
                (r) PRG ROM A13 - |20      29| - PRG A14 (s)
                (r) PRG ROM A14 - |21      28| - PRG A13 (s)
                (r) PRG ROM A15 - |22      27| - PRG A12 (s)
                (r) PRG ROM A16 - |23      26| - PRG ROM A18 (r)
                            GND - |24      25| - PRG ROM A17 (r)
                                  |          |
                                  `----------'