Address Register (Flash_ Addr) - WCH CH32V003 Series Reference Manual

CH32V003 Reference Manual
Bit Name
[31:20] Reserved
19 BUFRST
18 BUFLOAD
17 FTER
16 FTPG
15 FLOCK
[14:13] Reserved
12 EOPIE
11 Reserved
10 ERRIE
9 OBWRE
8 Reserved
7 LOCK
6 STRT
5 OBER
4 OBG
3 Reserved
2 MER
1 PER
0 PG

16.3.6 Address register (FLASH_ ADDR)

Offset address: 0x14
31 30 29 28
V1.3
Access
RO Reserved
RW BUF reset operation
RW Cache data into BUF
RW Performs a fast page (64Byte) erase operation.
RW Performs quick page programming operations.
Fast programming lock. Write '1' only. When
this
programming/erase mode is not available.
RW1
Hardware clears this bit to '0' after the correct
unlock sequence is detected.
The software is set to 1 and re-locked.
RO Reserved
Operation completion interrupt control (EOP set
in FLASH_STATR register).
RW
1: Allow generation of interrupts.
0: Interrupt generation is disabled.
RO Reserved
Error
(PGERR/WRPRTERR set in FLASH_STATR
RW register).
1: Allow generation of interrupts.
0: Interrupt generation is disabled.
User selects word lock, software clears 0.
1: Indicates that the user select word can be
programmed for operation. It needs to be set by
RW0 hardware after writing the correct sequence in
FLASH_OBKEYR register.
0: Re-lock the user selection word
after the software is cleared.
RO Reserved
Lock. Only '1' can be written. When this bit is '1'
it means that FPEC and FLASH_CTLR are
locked and unwritable. Hardware clears this bit
to '0' after the correct unlock sequence is
RW1
detected.
After an unsuccessful unlock operation, the bit
will not be changed again until the next system
reset.
Start. Set 1 to start an erase action and the
RW1 hardware automatically clears 0 (BSY becomes
'0').
RW Perform user-selected word erasure
RW Perform user-selected word programming
RO Reserved
Performs a full-erase operation (erases the entire
RW
user area).
RW Perform sector erase (1K)
RW Performs standard programming operations.
27 26 25 24
ADDR[31:16]
Description
bit is '1' it indicates
status interrupt
23 22 21
170
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Reset
value
0
0
0
0
0
that fast
1
0
0
0
control
0
0
0
1
0
0
0
0
0
0
0
20 19 18 17 16