mpc823rg Freescale Semiconductor, Inc, mpc823rg Datasheet - Page 253
mpc823rg
Manufacturer Part Number
mpc823rg
Description
Mpc823 Powerquicc Integrated Communications Processor For Portable Systems
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MPC823RG.pdf
(1348 pages)
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Memory Management Unit
11.6.1.12 MMU TABLEWALK BASE REGISTER. The MMU tablewalk base (M_TWB)
register contains a pointer to the level one table to be used in hardware-assisted tablewalk
mode.
L1TB—Tablewalk Level 1 Base Value
These bits are the most-significant bits of the level one pointer.
L1INDX—Level 1 Table Index
This field is ignored on write. It returns MD_EPN[0:9] on read when MD_CTR
MD_EPN[2:11] when MD_CTR
Bits 30–31—Reserved
These bits are reserved and must be set to 0. Ignores on write and returns a 0 on read.
M_TWB
NOTE: — = Undefined.
RESET
RESET
FIELD
ADDR
FIELD
ADDR
R/W
R/W
BIT
BIT
16
0
17
1
L1TB
R/W
—
18
2
Freescale Semiconductor, Inc.
For More Information On This Product,
19
3
20
TWAM
MPC823 REFERENCE MANUAL
4
Go to: www.freescale.com
21
= 0.
5
22
6
23
SPR 796
SPR 796
7
L1TB
R/W
—
24
8
L1INDX
R/W
—
25
9
10
26
11
27
12
28
13
29
TWAM
MOTOROLA
RESERVED
14
30
= 1 and
R/W
0
15
31
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