User's Guide

MC55i-W Hardware Interface Overview
5.5 Electrical Specifications of the Application Interface
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MC55i-W_HIO_v01.301 Page 24 of 30 2011-3-8
Confidential / Released
5.5 Electrical Specifications of the Application Interface
The Hirose DF12C board-to-board connector on MC55i-W is a 50-pin double-row receptacle.
The names and the positions of the pins can be seen from Figure 2 which shows the top view
of MC55i-W.
Figure 1: Pin assignment
1 CCCLK Not connected 50
2 CCVCC Not connected 49
3 CCIO EPP 48
4 CCRST EPN 47
5 CCIN VMICN 46
6 CCGND VMICP 45
7RXDDAI MICP 44
8TFSDAI MICN 43
9SCLK AGND 42
10 TXDDAI IGT 41
11 RFSDAI EMERG_RST 40
12 Do not use DCD0 39
13 STATUS CTS1 38
14 RXD1 CTS0 37
15 RXD0 RTS1 36
16 TXD1 DTR0 35
17 TXD0 RTS0 34
18 VDDLP DSR0 33
19 Not connected RING0 32
20 Not connected VDD 31
21 GND BATT+ 30
22 GND BATT+ 29
23 GND BATT+ 28
24 GND BATT+ 27
25 GND BATT+ 26