mpc823rg Freescale Semiconductor, Inc, mpc823rg Datasheet - Page 970

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

17.5 PROGRAMMING THE PCMCIA INTERFACE
The following section describes the PCMCIA interface programming model. All registers are
memory-mapped within the internal control register area. The following registers are used
to control the PCMCIA interface.
17.5.1 PCMCIA Interface Input Pins Register
The PCMCIA interface input pins register (PIPR) is used to sample the PCMCIA input port
signals. When the PCMCIA controller is not operating, bits 16-23 of the PIPR can be used
to read from and write to the IP_B[0:7] pins as general-purpose I/O pins.
Bits 0–15—Reserved
These bits are reserved and must be set to 0.
PIPR
NOTE: — = Undefined.
RESET
RESET
FIELD
ADDR
FIELD
ADDR
R/W
R/W
BIT
BIT
CBVS1
R/W
16
—
0
CBVS2
R/W
17
—
1
CBWP
R/W
CBDREQ2
18
—
2
Freescale Semiconductor, Inc.
Figure 17-2. Internal DMA Request Logic
CBCD2
For More Information On This Product,
R/W
19
—
3
IOIS16_B
CBCD1
MULTIPLEXER
R/W
20
MPC823 REFERENCE MANUAL
—
4
Go to: www.freescale.com
CBBVD
SPKR
R/W
21
—
5
2
CBBVD
R/W
22
—
6
1
(IMMR & 0xFFFF0000) + 0xF0
(IMMR & 0xFFFF0000) + 0xF0
CBDREQ1
CBRDY
R/W
23
—
7
RESERVED
R/W
—
INTERNAL DMA REQUEST
24
8
PORT C DREQ2
25
9
PORT C
DREQ2
LOGIC
10
26
11
27
RESERVED
R/W
—
12
28
PCMCIA Interface
13
29
14
30
17-9
15
31