mpc823rg Freescale Semiconductor, Inc, mpc823rg Datasheet - Page 977

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

PCMCIA Interface
CBOE—Card B Output Enable
The value of this bit is always reflected on the OP2 pin. When the PCMCIA controller is in
active mode, POE_B is connected to the OP2 pin. POE_B is used to three-state the address
and strobe pins addressing the PCMCIA card slot. Refer to Section 17.3.3 The PCMCIA
Output Port Signals .
CBRESET—Card B Reset
The value of this bit is always reflected on the OP3 pin. When the PCMCIA controller is in
active mode, RESET_B is connected to the OP3 pin. RESET_B is used to place the
PCMCIA card in its default (memory-only interface) state, and initiate the beginning of any
further card initialization. Refer to Section 17.3.3 The PCMCIA Output Port Signals .
Bits 26–31—Reserved
These bits are reserved and must be set to 0.
17.5.5 PCMCIA Base Registers
The PCMCIA base registers 0–7 (PBR0-7) contain the PCMCIA base addresses for the
PCMCIA memory or I/O windows. The base registers are used in conjunction with the BSIZE
field of the corresponding PCMCIA option register to ensure valid PCMCIA accesses.
PBA—PCMCIA Base Address
PBR0–PBR7
NOTE: — = Undefined.
RESET
RESET
FIELD
ADDR
FIELD
ADDR
R/W
R/W
BIT
BIT
0 = POE_B is asserted if the PCMCIA controller is active.
1 = POE_B is not asserted if the PCMCIA controller is active.
0 = RESET_B is not asserted if the PCMCIA controller is active.
1 = RESET_B is asserted if the PCMCIA controller is active.
16
0
17
1
18
2
(IMMR & 0xFFFF0000) + 0x80 (PBR0), 0x88 (PBR1), 0x90 (PBR2), 0x98 (PBR3),
(IMMR & 0xFFFF0000) + 0x80 (PBR0), 0x88 (PBR1), 0x90 (PBR2), 0x98 (PBR3),
Freescale Semiconductor, Inc.
For More Information On This Product,
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3
0xA0 (PBR4), 0xA8 (PBR5), 0xB0 (PBR6), 0xB8 (PBR7)
0xA0 (PBR4), 0xA8 (PBR5), 0xB0 (PBR6), 0xB8 (PBR7)
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MPC823 REFERENCE MANUAL
4
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21
5
22
6
23
7
PBA
PBA
R/W
R/W
—
—
24
8
25
9
10
26
11
27
12
28
13
29
MOTOROLA
14
30
15
31