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参数资料
| 型号： | MA31751 |
| 厂商： | Dynex Semiconductor Ltd. |
| 英文描述： | Memory Management & Block Protection Unit |
| 中文描述： | 内存管理 |
| 文件页数： | 3/17页 |
| 文件大小： | 160K |
| 代理商： | MA31751 |
MA31751
3/17
AL
E
RE*
W
RES
AL
W
RE*
PAL
PAL
E
RE*
AL
W
PRES
PPA
*
W
Page Register
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
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
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
Figure 3: MMU Memory Mapping Mechanism
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PDF描述 |
|---|---|
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| MA31755 | 16-Bit Feedthrough Error Detection & Correction Unit EDAC |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MA31753 | 制造商:DYNEX 制造商全称:Dynex Semiconductor 功能描述:DMA Controller (DMAC) For An MA31750 System |
| MA31755 | 制造商:DYNEX 制造商全称:Dynex Semiconductor 功能描述:16-Bit Feedthrough Error Detection & Correction Unit EDAC |
| MA318 | 功能描述:CPU与芯片冷却器 INTEL P111 FC-PGA RoHS:否 制造商:ADLINK Technology 尺寸: 电压额定值: 功率额定值: 速度: 气流: 系列: |
| MA3180 | 制造商:PANASONIC 制造商全称:Panasonic Semiconductor 功能描述:Silicon planar type |
| MA3180-H | 制造商:PANASONIC 制造商全称:Panasonic Semiconductor 功能描述:Silicon planar type |
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