schematics:apu_pinout
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| — | schematics:apu_pinout [2019/08/27 20:45] (current) – external edit 127.0.0.1 | ||
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| + | Pins 1 - 4 control the address. | ||
| + | Pin 4 being most significant bit. | ||
| + | |||
| + | 2140 = 0010 | ||
| + | 2141 = 0110 | ||
| + | 2142 = 1010 | ||
| + | 2143 = 1110 | ||
| + | Pin 1 is PA7 - Pull this one Low | ||
| + | Pin 2 is PA6 - Pull this one High | ||
| + | Pin 3 is PA0 | ||
| + | Pin 4 is PA1 | ||
| + | |||
| + | Pin 5 is /WR | ||
| + | Pin 6 is /RD | ||
| + | |||
| + | Pins 7-14 is D0-7 | ||
| + | |||
| + | Pin 15 is /RESET | ||
| + | Pin 16 is Not Connected | ||
| + | |||
| + | Pin 17 is SMPCK - output clock pulse, frequency unknown. | ||
| + | Pin 18 is Vcc | ||
| + | Pin 19 is GND | ||
| + | Pin 20 is Mute | ||
| + | Pin 21 is Audio output | ||
| + | Pin 22 is Audio output | ||
| + | Pin 23 is GND | ||
| + | Pin 24 is Audio Vcc | ||
| + | |||
| + | Credits: | ||
| + | The Dumper - Info on Pins 17 and 20. | ||
| + | |||
| + | |||
| + | EDIT: Pin 20 Mute does not need to be pulled high for audio output. | ||
schematics/apu_pinout.txt · Last modified: 2019/08/27 20:45 by 127.0.0.1