Sunsoft 5 pinout

Sunsoft FME-7 (and Sunsoft 5B): 44-pin TQFP

                           / \
                          / O \
           (s) CPU D3 -> /01 44\ <- CPU D2 (s)
         (r) PRG A18 <- /02   43\ <- CPU D4 (s)
                *NC -- /03     42\ <- CPU D1 (s)
            (n) M2 -> /04       41\ <- CPU D5 (s)
      (n) CPU A13 -> /05         40\ <- CPU D0 (s)
             GND -- /06           39\ -- +5V
    (n) CPU A14 -> /07             38\ <- CPU D6 (s)
   (n) /ROMSEL -> /08               37\ <- CPU D7 (s)
  (s) CPU R/W -> /09                 36\ -> PRG A13 (r)
    (n) /IRQ -> /10                   35\ -> PRG A16 (r)
(n) PPU /RD -> /11                     34\ -> PRG A14 (r)
(n) PPU A10 -> \12                     33/ -> PRG A15 (r)
 (n) PPU A11 -> \13                   32/ -> PRG A17 (r)
  (n) PPU A12 -> \14                 31/ -> PRG /CE (r)
  (n) PPU /A13 -> \15               30/ -> PRG RAM /CE (w)
    (r) CHR /CE <- \16             29/ -> PRG RAM +CE (w)
             +5V -- \17           28/ -- GND
              *NC -- \18         27/ -- +5V
       (r) CHR A10 <- \19       26/ -> CHR A17 (r)
        (r) CHR A16 <- \20     25/ -> CHR A15 (r)
         (r) CHR A11 <- \21   24/ -> CHR A14 (r)
          (r) CHR A13 <- \22 23/ -> CHR A12 (r)
                          \   /
                           \ /

* at least one of pins 3 or 18 should be audio related