ISD94100 Series Technical Reference Manual
Sep 9, 2019
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Rev1.09
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ISP Command Register (FMC_ISPCMD)
Register
Offset
R/W Description
Reset Value
FMC_ISPCMD
0x0C
R/W ISP Command Register
0x0000_0000
31
30
29
28
27
26
25
24
Reserved
23
22
21
20
19
18
17
16
Reserved
15
14
13
12
11
10
9
8
Reserved
7
6
5
4
3
2
1
0
Reserved
CMD
Bits
Description
[31:7]
Reserved
Reserved. Any values read should be ignored. When writing to this field always write with reset
value.
[6:0]
CMD
ISP Command
ISP command table is shown below:
0x00= FLASH Read.
0x04= Read Unique ID.
0x08= Read Flash All-One Result.
0x0B= Read Company ID.
0x0C= Read Device ID.
0x0D= Read Checksum.
0x21= FLASH 32-bit Program.
0x22= FLASH Page Erase. Erase page
0x23= FLASH Bank Erase. Erase all pages of APROM.
0x25= FLASH Block Erase. Erase four pages alignment of APROM.
0x27= FLASH Multi-Word Program.
0x28= Run Flash All-One Verification.
0x2D= Run Checksum Calculation.
0x2E= Vector Remap.
0x40= FLASH 64-bit Read.
0x61= FLASH 64-bit Program.
The other commands are invalid.