Abov MC97F6108A - Page 210

19. Memory programming MC97F6108A User’s manual
210
Flash page 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. FEMR:1001_0001
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.
11. Repeat Steps from 2 to 8 until all pages are erased
Flash bulk 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. FEMR:1001_0001.
Only main cell area is erased.
For bulk erase including OTP area, select OTP area (set FEMR to 1000_1101).
6. Set FETCR
7. Start bulk erase. FECR:1000_1011
8. Insert one NOP operation
9. Read FESR until PEVBSY is 1.