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參數(shù)資料
| 型號： | MAR31751FXXXX |
| 廠商： | DYNEX SEMICONDUCTOR LTD |
| 元件分類： | 存儲控制器/管理單元 |
| 英文描述： | 16-BIT, 256 PAGES, MEMORY MANAGEMENT UNIT, QFP68 |
| 封裝： | QFP-68 |
| 文件頁數(shù)： | 12/18頁 |
| 文件大?。?/td> | 166K |
| 代理商： | MAR31751FXXXX |
MA31751
3/18
AL
E
RES PPA
W
RES
AL
W
RES PPA
PPA
AL
E
RES PPA
AL
W
RES
PPA
AL
W
RES PPA
AL
W
RES
PPA
0
3
4
5
7 8
15
Instruction
Operand
LPA
4
16-bit logical
address
Address of
word within
4k page
Logical
Address of
4k page
8 bits
12 bits
Extended
Address
8/11-bit address
expansion
12-bit logical
address
8
12
16
words
32
groups
AS
PS
from CPU status word
DMA
AS
PS
DMAKN
5
Group address
OIN
Lock and key
access protection
Protect logic
4
Access
violation
*
* These 3 bits are reserved in 1750A. In 1750B they are used as
extra PPA bits to form the MSB's of the extended address bus.
*
MPROEN
Execute
protect
Write
protect
3
3 bits
1750B
12 LSB of Address
Page Register
Figure 3: MMU Memory Mapping Mechanism
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAR31751AXXXX | 16-BIT, 256 PAGES, MEMORY MANAGEMENT UNIT, CPGA68 |
| MAQ31751AXXXX | 16-BIT, 256 PAGES, MEMORY MANAGEMENT UNIT, CPGA68 |
| MAQ31751FXXXX | 16-BIT, 256 PAGES, MEMORY MANAGEMENT UNIT, QFP68 |
| MAR8251CC | 1 CHANNEL(S), 64K bps, SERIAL COMM CONTROLLER, CDIP28 |
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