Smart Card Interface (SCI)
12-6 Copyright © 2004, 2006 ARM Limited. All rights reserved. ARM DDI 0287B
12.3 SCI signals on pads
The SCI interface signals connected to the input/output pads are listed in Table 12-2.
Table 12-2 SCI signals
Name Type Description
SCICLKIN Input PrimeCell SCI clock input.
SCIDATAIN Input PrimeCell SCI serial data input.
nSCICLKOUTEN Output Tristate output buffer control (active LOW).
SCICLKOUT Output Clock output.
nSCIDATAOUTEN Output Data output enable (typically drives an open-drain configuration, active
LOW).
nSCICLKEN Output Tristate control for external off-chip buffer (active LOW).
nSCIDATAEN Output Tristate control for external off-chip buffer (active LOW).
SCIVCCEN Output Supply voltage controls (active HIGH).
nSCICARDRST Output Reset to card (active LOW).
SCIFCB Output Function code bit, used in conjunction with nSCICARDRST.
SCIDETECT Input Card detects signal from card interface device (active HIGH).
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