Cmsemicon CMS32L051 - Flash Status Register (FLSTS); Flash Full-Chip Erase Time Control Register (FLCERCNT)

V1.2.2
CMS32L051 User Manual | FLASH Control
www.mcu.com.cn 698 / 703
27.3.4 Flash status register (FLSTS)
The status register allows you to query the status of the FLASH controller.
Address: 0x40020000 after reset: 00HR/W
Symbol
7 6 5 4 3 2 1 0
FLSTS
OVF

0

1

Note: OVF requires software to write 1 to clear it. If it is not cleared, the next erase and write operation
cannot occur.
EVF

0

1

Note: EVF requires software to write 1 to clear it.
27.3.5 Flash full-chip erase time control register (FLCERCNT)
The FLCERCNT register allows the time of FLASH full film erasure to be set.
Address: 0x40020010 After reset: Indefinite R/W
symbol
FLCERCNT
Load


0

1

Note: When the master clock is an internal high-speed OCO or an external input clock <=20M, the
hardware setting time can be used and FLCERCNT is not set.
FLCERCNT[9:0]


31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
load
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
-
-
-
-
-
-
FLCERCNT[9:0]
0
0
0
0
0
EVF
note
0
OVF Note