ISD94100 Series Technical Reference Manual
Sep 9, 2019
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Rev1.09
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ISP Status Register (FMC_ISPSTS)
Register
Offset
R/W Description
Reset Value
FMC_ISPSTS
0x40
R
ISP Status Register
0x0000_000X
31
30
29
28
27
26
25
24
Reserved
23
22
21
20
19
18
17
16
VECMAP
15
14
13
12
11
10
9
8
VECMAP
Reserved
7
6
5
4
3
2
1
0
ALLONE
ISPFF
PGFF
FCYCDIS
Reserved
CBS
ISPBUSY
Bits
Description
[31:24]
Reserved
Reserved. Any values read should be ignored. When writing to this field always write with
reset value.
[23:9]
VECMAP
Vector Page Mapping Address (Read Only)
The current flash address space 0x0000_0000~0x0000_01FF is mapping to address
{VECMAP[14:0], 9’h000} ~ {VECMAP[14:0], 9’h1FF}
[8]
Reserved
Reserved. Any values read should be ignored. When writing to this field always write with
reset value.
[7]
ALLONE
Flash All-one Verification Flag
This bit is set by hardware if all of flash bits are 1, and clear if flash bits are not all 1 after
“Run Flash All-One Verification” complete; this bit also can be clear by writing 1
0 = All of flash bits are 1 after “Run Flash All-One Verification” complete.
1 = Flash bits are not all 1 after “Run Flash All-One Verification” complete.
[6]
ISPFF
ISP Fail Flag (Read Only)
This bit is set by hardware when a triggered ISP meets any of the following conditions:
(1) APROM writes to itself if APUEN is set to 0.
(2) LDROM writes to itself if LDUEN is set to 0.
(3) CONFIG is erased/programmed if CFGUEN is set to 0.
(4) Destination address is illegal, such as over an available range.
[5]
PGFF
Flash Program with Fast Verification Flag (Read Only)
This bit is set if data is mismatched at ISP programming verification. This bit is cleared by
performing ISP flash erase or ISP read CID operation
0 = Flash Program is success.
1 = Flash Program has failed. Program data is different with data in the flash memory
[4]
FCYCDIS
Flash Access Cycle Auto-tuning Disabled Flag (Read Only)
This bit is set if flash access cycle auto-tunning function is disabled. The auto-tunning
function is disabled by FADIS(FMC_CYCCTL[8]) or HIRC clock is not ready.
0 = Flash access cycle auto-tuning is Enabled.
1 = Flash access cyle auto-tuning is Disabled.