ARM ARM DUI 0224I SCICLKINx, NSCICLKENx, SCICLKOUTx, NSCIDATAENx, SCIDATAINx, NSCIDATAOUTENx

Models: ARM DUI 0224I

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Hardware Description

The default setting is linking pins AB. Both 3.3V and 5V cards will function with this setting.

Note

The Smart Card VCC is switched on and off by the SCIVCCENx signal from the PrimeCell.

See also Smart Card Interface, SCI on page 4-88 and the SCI PrimeCell PL131 Technical Reference Manual.

 

Table 3-21 Smart Card interface signals

 

 

Signal

Description

 

 

SCICLKINx

PrimeCell SCI clock input.

 

 

nSCICLKENx

Tristate output buffer control for clock (active LOW).

 

 

SCICLKOUTx

Clock output.

 

 

nSCIDATAENx

Tristate control for external off-chip buffer (active LOW).

 

 

SCIDATAINx

PrimeCell SCI serial data input.

 

 

nSCIDATAOUTENx

Data output enable (typically drives an open-drain configuration,

 

active LOW).

 

 

nSCICARDRSTx

Reset to card (active LOW).

 

 

SCIFCBx

Function code bit, used in conjunction with nSCICARDRST.

 

 

SCIDETECTx

Card detect signal from card interface device (active HIGH).

 

 

nDRVINEN1

Device select signal from RealView Logic Tile. This signal can

 

be driven HIGH by the logic tile to enable it to drive the

 

SCIDATAIN0, SCICLKIN0, and SCIDETECT0 signals. The

 

signal is normally pulled LOW by a resistor to ground.

 

 

ARM DUI 0224I

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

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ARM ARM DUI 0224I manual SCICLKINx, NSCICLKENx, SCICLKOUTx, NSCIDATAENx, SCIDATAINx, NSCIDATAOUTENx, NSCICARDRSTx, SCIFCBx