mpc823rg Freescale Semiconductor, Inc, mpc823rg Datasheet - Page 972

• Manufacturer Part Number: mpc823rg
• Description: Mpc823 Powerquicc Integrated Communications Processor For Portable Systems
• Manufacturer: Freescale Semiconductor, Inc

If Card B and its socket are configured for I/O interface operation or if the card’s power
supply circuitry is using the IRQ signal, CBRDY is:
Bits 24–31—Reserved
These bits are reserved and must be set to 0.
17.5.2 PCMCIA Interface Status Change Register
The PCMCIA interface status change register (PSCR) records changes in the state of the
PCMCIA input port signals. This register is reset by writing ones to it (writing zero has no
effect). However, bits 24 and 25 are level-triggered. To clear them, the external source of
the interrupt must be cleared.
Bits 0–15—Reserved
These bits are reserved and must be set to 0
CBVS1_C—Card B Voltage Sense 1 Change
CBVS2_C—Card B Voltage Sense 2 Change
PSCR
NOTE: — = Undefined.
RESET
RESET
FIELD
ADDR
FIELD
ADDR
R/W
R/W
BIT
BIT
0 = Card B is requesting an interrupt.
1 = Card B is not requesting an interrupt.
0 = Signal is changed.
1 = Signal is unchanged.
0 = Signal is changed.
1 = Signal is unchanged.
CBVS1
16
_C
0
CBVS2
17
_C
1
CBWP_
18
2
C
Freescale Semiconductor, Inc.
CBCD2
For More Information On This Product,
19
_C
3
CBCD1
20
_C
MPC823 REFERENCE MANUAL
4
Go to: www.freescale.com
CBBVD
2_C
21
5
CBBVD
1_C
22
6
(IMMR & 0xFFFF0000) + 0xE8
(IMMR & 0xFFFF0000) + 0xE8
RES
23
7
RESERVED
R/W
R/W
—
—
CBRDY
24
_L
8
CBRDY
25
_H
9
CBRDY
10
26
_R
CBRDY
11
27
_F
12
28
PCMCIA Interface
13
29
RESERVED
14
30
17-11
15
31