参数资料
型号: PA28F400BVT120
厂商: INTEL CORP
元件分类: PROM
英文描述: 4-MBIT (256K X 16, 512K X 8)SmartVoltage BOOT BLOCK FLASH MEMORY FAMILY
中文描述: 256K X 16 FLASH 5V PROM, PDSO44
封装: 1.110 X 0.525 INCH, PLASTIC, SOP-44
文件页数: 13/50页
文件大小: 559K
代理商: PA28F400BVT120
28F400BX-T/B, 28F004BX-T/B
2.1.2.2 28F400BX-T Memory Map
The 28F400BX-T device has the 16-Kbyte boot
block located from 3E000H to 3FFFFH to accom-
modate those microprocessors that boot from the
top of the address map. In the 28F400BX-T the first
8-Kbyte parameter block resides in memory space
from 3D000H to 3DFFFH. The second 8-Kbyte pa-
rameter block resides in memory space from
3C000H to 3CFFFH. The 96-Kbyte main block re-
sides in memory space from 30000H to 3BFFFH.
The three 128-Kbyte main blocks reside in memory
space from 20000H to 2FFFFH, 10000H to 1FFFFH
and 00000H to 0FFFFH as shown below in Figure 8.
(Word Addresses)
3FFFFH
16-Kbyte BOOT BLOCK
3DFFFH
3E000H
8-Kbyte PARAMETER BLOCK
3CFFFH
3D000H
8-Kbyte PARAMETER BLOCK
3BFFFH
3C000H
96-Kbyte MAIN BLOCK
2FFFFH
30000H
128-Kbyte MAIN BLOCK
1FFFFH
20000H
128-Kbyte MAIN BLOCK
0FFFFH
10000H
128-Kbyte MAIN BLOCK
00000H
Figure 8. 28F400BX-T Memory Map
13
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