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28F004BX-B

4-MBIT (256K X 16, 512K X 8) BOOT BLOCK FLASH MEMORY FAMILY

Intel 

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

28F400BX-T B 28F004BX-T B

(Word Addresses)

3FFFFH

3E000H

3DFFFH

3D000H

3CFFFH

3C000H

3BFFFH

30000H

2FFFFH

20000H

1FFFFH

10000H

0FFFFH

16-Kbyte BOOT BLOCK

8-Kbyte PARAMETER BLOCK

8-Kbyte PARAMETER BLOCK

96-Kbyte MAIN BLOCK

128-Kbyte MAIN BLOCK

128-Kbyte MAIN BLOCK

128-Kbyte MAIN BLOCK

00000H

Figure 8 28F400BX-T Memory Map

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