ARM ARM DUI 0224I manual Smart Card interface, Pin Signal Description

Models: ARM DUI 0224I

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Signal Descriptions

A.2 Smart Card interface

The PB926EJ-S contains two Smart Card SIM sockets:

J48 for SIM 0 (J25 uses an alternate layout for SIM 0 and is not fitted)

J49 for SIM1 (J26 uses an alternate layout for SIM 0 and is not fitted).

Sockets J48 and J49 include a switch for card detection.

The signals on the SIM sockets are also connected to the SCI expansion socket. The signals associated with the SCI are shown in Table A-2.

 

 

 

 

 

Table A-2 Smartcard connector signal assignment

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pin

Signal

 

Description

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

SC_VCCx

 

Card power (1.8V, 3.3V, or 5V)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

SC_RSTx

 

Reset to card

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

SC_CLKx

 

Clock to or from card

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

NC

 

Not present on J48 and J49, NC on J25 and J26.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

GND

 

Ground

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6

SC_VCCx

 

Card power (1.8V, 3.3V, or 5V)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

SC_DATAx

 

Serial data to or from the card

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8

NC

 

Not present on J48 and J49, NC on J25 and J26.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SW1

nSCIDETECTx

 

Card detect signal from switch in socket (not present

 

 

 

 

 

on J25 and J26)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure A-2 Smartcard contacts assignment

Figure A-2 shows the signal assignment of a smartcard. Pins 4 and 8 are not connected and are omitted on some cards.

The SIM card is inserted into one of the SIM card sockets with the contacts face down on the top connector or face up on the bottom connector.

ARM DUI 0224I

Copyright © 2003-2010 ARM Limited. All rights reserved.

A-3

Page 271
Image 271
ARM ARM DUI 0224I manual Smart Card interface, Pin Signal Description