Konami SCC+
Description
This chip is a custom sound chip designed by Konami, in collaboration with Toshiba, for the Sound Cartridge included with the games Snatcher and SD Snatcher. The Snatcher version of the chip can also be used for some disk compilations. In addition the chip was also used in various Konami arcade systems.
This chip is often called SCC-I because that is written on the chip but it's also written on other totally different chips released by Konami, otherwise commonly referred to as SCC+, as it is an improved version of the SCC sound chip. In a normal SCC, the 4th and 5th channel share the same wave form. In the SCC+ the 5th channel can have its own wave form.
Pinout
| Pin | I/O | Signal | Remark |
|---|---|---|---|
| 1 | VSS | Go to pin 41,43(GND) of slot cartridge | |
| 2 | ? | ? | Go to pin 41,43(GND) of slot cartridge |
| 3 | ? | ? | Go to pin 41,43(GND) of slot cartridge |
| 4 | O | MA0 | Go to pin 10 (A7) of RAM |
| 5 | O | MA1 | Go to pin 11 (A3) of RAM |
| 6 | O | MA2 | Go to pin 12 (A2) of RAM |
| 7 | O | MA3 | Go to pin 13 (A1) of RAM |
| 8 | O | MA4 | Go to pin 14 (A0) of RAM |
| 9 | O | MA5 | Go to pin 08 (A4) of RAM |
| 10 | O | MA6 | Go to pin 07 (A5) of RAM |
| 11 | O | MA7 | Go to pin 06 (A6) of RAM |
| 12 | O | MA8 | N.C. (Can be used to upgrade the cartridge to 256kB) |
| 13 | O | OE | Go to pin 01 (/CS) of RAM |
| 14 | O | W | Go to pin 04 (/W) of RAM |
| 15 | ? | ? | N.C. |
| 16 | O | DA0 | Go to the binary-weighted resistors pin 13 |
| 17 | O | DA1 | Go to the binary-weighted resistors pin 12 |
| 18 | O | DA2 | Go to the binary-weighted resistors pin 11 |
| 19 | O | DA3 | Go to the binary-weighted resistors pin 10 |
| 20 | O | DA4 | Go to the binary-weighted resistors pin 09 |
| 21 | O | DA5 | Go to the binary-weighted resistors pin 08 |
| 22 | VSS | Go to pin 41,43(GND) of slot cartridge | |
| 23 | O | DA6 | Go to the binary-weighted resistors pin 07 |
| 24 | O | DA7 | Go to the binary-weighted resistors pin 06 |
| 25 | O | DA8 | Go to the binary-weighted resistors pin 05 |
| 26 | O | DA9 | Go to the binary-weighted resistors pin 04 |
| 27 | O | DA10 | Go to the binary-weighted resistors pin 03 |
| 28 | I/O | D4 | Go to pin 02 (DQ1) of the first and second RAM chips, then slot cartridge (D4) |
| 29 | I/O | D5 | Go to pin 03 (DQ2) of the first and second RAM chips, then slot cartridge (D5) |
| 30 | I/O | D6 | Go to pin 15 (DQ3) of the first and second RAM chips, then slot cartridge (D6) |
| 31 | I/O | D7 | Go to pin 17 (DQ4) of the first and second RAM chips, then slot cartridge (D7) |
| 32 | VSS | Go to pin 41,43(GND) of slot cartridge | |
| 33 | I/O | D3 | Go to pin 17 (DQ4) of the third and fourth RAM chips, then slot cartridge (D3) |
| 34 | I/O | D2 | Go to pin 15 (DQ3) of the third and fourth RAM chips, then slot cartridge (D2) |
| 35 | I/O | D1 | Go to pin 03 (DQ2) of the third and fourth RAM chips, then slot cartridge (D1) |
| 36 | I/O | D0 | Go to pin 02 (DQ1) of the third and fourth RAM chips, then slot cartridge (D0) |
| 37 | I | A5 | Go to pin 31 of slot cartridge |
| 38 | I | A4 | Go to pin 32 of slot cartridge |
| 39 | I | A3 | Go to pin 29 of slot cartridge |
| 40 | I | A2 | Go to pin 30 of slot cartridge |
| 41 | I | A1 | Go to pin 27 of slot cartridge |
| 42 | I | A0 | Go to pin 28 of slot cartridge |
| 43 | I | A14 | Go to pin 25 of slot cartridge |
| 44 | I | A13 | Go to pin 26 of slot cartridge |
| 45 | I | A12 | Go to pin 23 of slot cartridge |
| 46 | I | A8 | Go to pin 24 of slot cartridge |
| 47 | I | A7 | Go to pin 21 of slot cartridge |
| 48 | I | A6 | Go to pin 22 of slot cartridge |
| 49 | I | A11 | Go to pin 19 of slot cartridge |
| 50 | I | A10 | Go to pin 20 of slot cartridge |
| 51 | I | A9 | Go to pin 17 of slot cartridge |
| 52 | I | A15 | Go to pin 18 of slot cartridge |
| 53 | I | RESET | Go to pin 15 of slot cartridge |
| 54 | I | WR | Go to pin 13 of slot cartridge. On some cartridges, this pin is short-circuited with a wire connected to pin 04 (/W) of RAM. |
| 55 | I | RD | Go to pin 14 of slot cartridge |
| 56 | I | RFSH | Go to pin 06 of slot cartridge |
| 57 | I | CS | Go to pin 04 (/SLTSL) of slot cartridge |
| 58 | O | CAS | Go to pin 16 (/CAS) of the first and third chips (SD Snatcher) |
| 59 | O | CAS | Go to pin 16 (/CAS) of the second and fourth chips (Snatcher) |
| 60 | O | RAS | Go to pin 5 (/RAS) of 4 RAM chips |
| 61 | I | SND CLK | Sound clock (3.58 MHz), Go to pin 42 of slot cartridge |
| 62 | I | BUS CLK | CPU/BUS clock (3.58 MHz), Go to pin 42 of slot cartridge |
| 63 | ? | ? | Go to pin 45,47 (+5V power supply) of slot cartridge |
| 64 | PWR | VCC | Go to pin 45,47 (+5V power supply) of slot cartridge |