J102; J102---Key & Power - SimCom SIM345 EVB Manual

SIM345 EVB User Guide
3 RXD1
4 TXD1
5 DTR
6 CTS
7 DSR
8 GPIO4
9 RI
10 GPO1
4.2 J102---KEY & POWER
KEY & POWER Pin List
Pin Signal
1 COL0
2 ROW0
3 COL1
4 ROW1
5 COL 2
6 ROW2
7 COL 3
8 ROW3
9 COL 4
10 ROW4
11 CHG_IN
12 GND
13 VDD
14 VBATT
SIM345-EVB_UGD_V1.02
O Receive data
I Transmit data
I Data Terminal Ready
O Clear to Send
I
I/O Transmit or receive data
O Ring Indicator
O Transmit data
Figure 13: J102 Interface
I/O Description
O
I
O
I
O
Keypad array interface
I
O
I
O
I
I
I
14
15.02.2008