- SP0256
- SP0256 Voice Generator
- SP0256 Instruction Set
- SP0256 Allophones
- SP0256 Pin-Outs
SP0256 - Speech chip
1 GND 2 /RESET 3 ROM DISABLE 4 C1 5 C2 6 C3 7 VCC1 8 SBY 9 /LRQ 10 A8 11 A7 12 SER OUT 13 A6 14 A5 15 A4 16 A3 17 A2 18 A1 19 SE 20 /ALD 21 SER IN 22 TEST 23 VCC2 24 PWM OUT 25 /SBY RESET 26 ROM CLK 27 OSC1 28 OSC2
The oscillator should be 3.12MHz Allows to output sounds up to 5kHz (ie. the output is updated at 10kHz rate). The SP0256 is reportedly expandable to "491 K of ROM" (probably bullshit). The SP0256B is reportedly expandable to "480 K of ROM" (probably K=Kbits). The TEST pin of the SP0256 chip can be used (among others) to dump its internal ROM. Note: Details on TEST are found in the "SP0256B" datasheet - but not in the "SP0256" datasheet - not sure if the pin works identical for both chip types, nor if there's a difference between them at all.
SPR16 (16kbit) and SPR32 (32kbit) - External Serial-bus Speech ROM
1 GND 2 C3 3 NC 4 ROM CLK 5..6 NC 7 CS1 8 /CS2 9 /ROM ENABLE 10 SERIAL OUT 11 VCC 12..13 NC 14 SERIAL IN 15 C1 16 C2
SPR128 (128kbit) - External Serial-bus Speech ROM
1 GND 2 C3 3 NC 4 ROM CLK 5..10 NC 11 CS1 12 /CS2 13 /ROM ENABLE 14 SERIAL OUT 15 VCC 16..21 NC 22 SERIAL IN 23 C1 24 C2