ST STM32L4x6 User Manual

Embedded Flash memory (FLASH) RM0351
112/1693 DocID024597 Rev 3
3.7.7 Flash ECC register (FLASH_ECCR)
Address offset: 0x18
Reset value: 0x0000 0000
Access: no wait state when no Flash memory operation is on going, word, half-word and
byte access
Bits 10:3 PNB[7:0]: Page number selection
These bits select the page to erase:
If BKER = 0:
00000000: page 0
00000001: page 1
...
11111111: page 255
If BKER=1
00000000: page 256
00000001: page 257
...
11111111: page 511
Bit 2 MER1: Bank 1 Mass erase
This bit triggers the bank 1 mass erase (all bank 1 user pages) when set.
Bit 1 PER: Page erase
0: page erase disabled
1: page erase enabled
Bit 0 PG: Programming
0: Flash programming disabled
1: Flash programming enabled
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
ECCD ECCC Res. Res. Res. Res. Res.
ECCC
IE
Res. Res. Res.
SYSF_
ECC
BK
_ECC
ADDR_ECC[18:16]
rc_w1 rc_w1 rw r r r r r
1514131211109 8765432 1 0
ADDR_ECC[15:0]
rrrrrr r r rrrrrr r r
Bit 31 ECCD: ECC detection
Set by hardware when two ECC errors have been detected. When this bit is set,
a NMI is generated
Cleared by writing 1.
Bit 30 ECCD: ECC correction
Set by hardware when one ECC error has been detected and corrected. An
interrupt is generated if ECCIE is set.
Cleared by writing 1.
Bits 29:25 Reserved, must be kept at reset value.

ST STM32L4x6 Specifications

General

Brand	ST
Model	STM32L4x6
Category	Microcontrollers
Language	English