| Pin | Signal | Description | 
| 1 | SD7 | Data Bit 7 | 
| 2 | SD0 | Data Bit 0 | 
| 3 | SD6 | Data Bit 6 | 
| 4 | SD1 | Data Bit 1 | 
| 5 | SD5 | Data Bit 5 | 
| 6 | SD2 | Data Bit 2 | 
| 7 | SD4 | Data Bit 4 | 
| 8 | SD3 | Data Bit 3 | 
| 9 | GND | 0 Volts | 
| 10 | SCK | Undefined Control Line | 
| 11 | SVB | External Power Input / Battery Output Voltage - 0.6 Volt | 
| 12 | SS3 | Slot Select 3 | 
| 13 | SCVV | +5 Volts | 
| 14 | AC | External On/Clear | 
| 15 | SOME | Undefined Control Line | 
| 16 | SMR | Undefined Control Line | 
 

