DSB75 Development Support Board Rev. B1 Hardware Description
Confidential / Released
DSB75_hd_v12
Page 30 of 96
2008-08-26
Figure 10: Pin location of the Molex SIM card holder and test pins
Table 10: Pin assignment – SIM card holder X503 and test pins X501
Pin number on
holder X503
X501 test
points
Signal name
I/O
Function
1
1
VSIM
O
Supply voltage U = 2.93V (typ.) or 1.8V for
SIM card, generated by the module.
2
2
CCRST
O
Chip card reset, prompted by the module
3 3 CCCLK
O
Chip
card
clock
4,8
4, 5, 7
CCGND
-
Separate ground line for the SIM card to
improve EMC
5 - CCVPP
-
Not
connected
6
6
CCIO
I/O
Serial data line, bi-directional
7 8 CCIN
I
Chip
card
detection
0 = Chip card drawer is inserted
1 = Chip card drawer is not inserted