VRC7 pinout

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"

                   .----\/----.
(RAM&s) CHR /OE -> |01      48| -- NC
(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| -> CHR RAM/ROM A17 (r)
        (s) PD2 -> |09      40| -> CHR RAM/ROM A16 (r)
        (s) PD3 -> |10      39| -> CHR RAM/ROM A15 (r)
        (s) PD4 -> |11      38| -> CHR RAM/ROM A14 (r)
        (s) PD5 -> |12      37| -> CHR RAM/ROM A13 (r)
        (s) PD6 -> |13      36| -> CHR RAM/ROM A12 (r)
        (s) PD7 -> |14      35| -> CHR RAM/ROM A11 (r)
            +5V -- |15      34| -> CHR RAM/ROM A10 (r)
     (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)
                   `----------'