Allwinner A20 - Smart Card Reader Register Description

A20 User Manual (Revision 1.2) Copyright © 2013 Allwinner Technology Co., Ltd. All Rights Reserved. Page 771 / 812
Module Name
Base Address
SCR0
0x01C2C400
Register Name
Offset
Description
SCR_CSR
0x000
Smart Card Reader Control and Status Register
SCR_INTEN
0x004
Smart Card Reader Interrupt Enable Register 1
SCR_INTST
0x008
Smart Card Reader Interrupt Status Register 1
SCR_FCSR
0x00c
Smart Card Reader FIFO Control and Status Register
SCR_FCNT
0x010
Smart Card Reader RX and TX FIFO Counter Register
SCR_RPT
0x014
Smart Card Reader RX and TX Repeat Register
SCR_DIV
0x018
Smart Card Reader Clock and Baud Divisor Register
SCR_LTIM
0x01c
Smart Card Reader Line Time Register
SCR_CTIM
0x020
Smart Card Reader Character Time Register
SCR_LCTLR
0x030
Smart Card Reader Line Control Register
SCR_FIFO
0x100
Smart Card Reader RX and TX FIFO Access Point
6.14.5. Smart Card Reader Register Description
6.14.5.1. SMART CARD READER CONTROL AND STATUS REGISTER
Offset: 0x0000
Register Name: SCR_CSR
Default Value: 0x00000000
Bit
Read/Write
Default
Description
31
R
0
SCDET
Smart Card Detected
This bit is set to ‘1’ when the scdetect input is active at least for
a debounce time.
30
/
/
/
24
R/W
0
SCDETPOL
Smart Card Detect Polarity
This bit set polarity of scdetect signal.