Pin | Name | Description |
1 | ROW0 | ROW0 - Keyboard matrix row 0 |
2 | ROW1 | ROW1 - Keyboard matrix row 1 |
3 | ROW2 | ROW2 - Keyboard matrix row 2 |
4 | ROW3 | ROW3 - Keyboard matrix row 3 |
5 | ROW4 | ROW4 - Keyboard matrix row 4 |
6 | COL0 | COL0 - keyboard matrix column 0 (flip identification) |
7 | COL1 | COL1 - keyboard matrix column 1 |
8 | COL2 | COL1 - keyboard matrix column 2 |
9 | COL3 | COL1 - keyboard matrix column 3 |
10 | COL4 | COL1 - keyboard matrix column 4 |
11 | Signal1 | Signal1 - flip interrupt (not used) |
12 | VF_IN | VF_IN - Flash In |
13 | VF_OUT | VF_OUT - Flash Out |
14 | VBATT | VBATT - Battery Voltage |
15 | UAGND | UAGND - Analog Gnd |
16 | PWRON | PWRON - Power On key |
17 | LCDCDX | LCDCDX - LCD driver code/data selection |
18 | SCLK | SCLK - LCD driver serial clock |
19 | SDA | SDA - LCD driver serial data |
20 | LCDCSX | LCDCSX - LCD driver chip select |
21 | LCDRSTX | LCDRSTX - LCD driver reset |
22 | UDGND | UDGND - Digital Gnd |
23 | BUZZER | BUZZER - Buzzer PWM control |
24 | VL | VL - Supply voltage |
25 | SPARE | SPARE - Call indicator LED |
26 | LIGHT | LIGHT - Illumination control |
27 | EARN | EARN - Speaker neutral |
28 | EARP | EARP - Speaker positive |