Rev. 3.0, 03/01, page 114 of 390
10.4.3
PCC0 Card Status Change Register (PCC0CSCR)
Bit
7
6
5
4
3
2
1
0
Bit Name
P0SCDI
PSW_SEL
P0IREQ
P0SC
P0CDC
P0RC
P0BW
P0BD
Initial Value
0
0
1
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
The PCC0 Card Status Change Register (PCC0CSCR) is an 8-bit READ/WRITE register.
PCC0CSCR is set to 1 by each interrupt factor of the PC card connected to PCC0 (only bits 7 and
6 can be set to 1 as required). Bit 6 is for power switch selection. PCC0CSCR is initialized at
power-up reset or in hardware-based STANDBY mode, and holds its value at software reset or in
software-based STANDBY mode.
Bit
Description
Default
7
PCC0 Software Card Detect Interrupt (P0SCDI)
If this bit is high: Software card detection interrupt occurs for the PC card connected to
PCC0.
If this bit is low: No software card detection interrupt occurs for the PC card connected to
PCC0. (Initial value)
If bit 3 (card detection enable) in the PCC0 card status change interrupt enable register
(PCC0CSCIER) is set to 1, a software card detect change interrupt can be generated by
writing 1 to this bit.
If bit 3 (card detection enable) in the PCC0CSCIER is reset to 0, interrupts will not occur
even when writing “1” to this bit.
0
6
Power Switch Select (PSWSEL)
Select power switch interface
0:
MIC2563
1:
TPS2206 serial power switch
0
5
PCC0 Interrupt Request (P0IREQ)
If this bit is high: Indicates that an interrupt request for the IREQ pin in the PC card has
occurred when the PC card is in the I/O and Memory card interface.
If this bit is low: Indicates no interrupt request for the IREQ pin in the PC card when the
PC card is in the I/O and Memory card interface. (Initial value)
This bit can be reset to 0 only in the pulse mode. To reset, write “0” to this bit. This bit is
not changed if 1 is written.
In the level mode, bit 5 is a READ-only bit that reflects the state of IREQ pin (if the IREQ
pin is in the low level, 1 is read). In this bit, 0 is always read in the IC memory card
interface.
1
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