
19. Memory programming
MC97F6108A User’s manual
212
Flash OTP area erase mode
1.
Enable program mode.
2.
Reset page buffer. FEMR: 1000_0001 FECR:0000_0010
3.
Select page buffer. FEMR:1000_1001
4.
Write ‘h00 to page buffer. (Data value is not important.)
5.
Set erase mode and select OTP area. FEMR:1001_0101
6.
Set page address. FEARH:FEARM:FEARL=20’hx_xxxx
7.
Set FETCR.
8.
Start erase. FECR:0000_1011
9.
Insert one NOP operation
10.
Read FESR until PEVBSY is 1.
Flash program verify mode
1.
Enable program mode.
2.
Set program verify mode. FEMR:1010_0011
3.
Read data from Flash.
OTP program verify mode
1.
Enable program mode.
2.
Set program verify mode. FEMR:1010_0111
3.
Read data from Flash.
Flash erase verify mode
1.
Enable program mode.
2.
Set erase verify mode. FEMR:1001_0011
3.
Read data from Flash.