Pin |
Name |
Function |
in/out |
1 |
VIN |
Input voltage -
supply pin |
in |
2 |
C-BUS |
Bi-directional serial control bus |
in/out |
3 |
I-BUS |
Data input
(internal 100k pullup) |
in |
4 |
PA_BIAS_ON |
Trigger signal
synchronous withr TX burst |
|
5 |
V-BATT |
Connected
directly to the MS battery |
|
6 |
HF_ENABLE |
HF enable
output |
|
7 |
IGNITION |
Sensing ignition
(in car kit) |
|
8 |
D-BUS
|
Data
output |
out |
9 |
CHG-ID |
Charger ID -
detects type of charger |
|
10 |
GND |
Ground-this pin
is checked by HF |
|
11 |
A-UL |
Analog input to
phone |
|
12 |
AGND |
Analog
ground |
|
13 |
A-DL |
Analog output
from phone |
|
14 |
AGND |
Analog
ground |
|
15 |
EQUIP-ID |
Pulled low by HF,
internal pullup 100k |
|
16 |
GND |
Ground |
|