| Handset: | Base: |
|---|---|
| Philips ARM PCD8008HL AT24C64A (serial EEPROM) | Philips ARM PCD80718HL AT45DB081B (8Mbit 2.7V) ST M24128BW (serial EEPROM) |
Gnd pin4 SCL pin2
O O O O
O O O O O
+B +EEP pin3 SDA pin1
|
line+ Gnd pin4 SCL pin2
O O O O O
O O O O O O
line- 11.2V +EEP pin3 SDA pin1
|
The above 2 connectors are almost identical with the addition on the telephone line to the left for the base.
To program the serial EEPROM only 4 pins are needed (+EEP SCL SDA Gnd). The other pins are used for programming the ARM processors.