Datasheet
Section 21 Flash Memory 
R01UH0310EJ0500 Rev. 5.00    Page 1081 of 1384 
Sep 25, 2012     
H8S/2426, H8S/2426R, H8S/2424 Group 
21.2.1  Flash Memory Control Register 1 (FLMCR1) 
Bit Bit Name 
Initial 
Value R/W  Description 
7  ⎯ 0 ⎯ Reserved 
The initial value should not be changed. 
6  CBIDB  1  R/W  CPU Programming Mode Select 
Setting this bit to 0 (CPU programming mode) enables 
command acceptance. 
0: CPU programming mode enabled 
1: CPU programming mode disabled 
5  ⎯ 0 ⎯ Reserved 
The initial value should not be changed. 
4  ⎯ 0 ⎯ Reserved 
The initial value should not be changed. 
3  ⎯ 0 ⎯ Reserved 
The initial value should not be changed. 
2  ⎯ 1 ⎯ Reserved 
The initial value should not be changed. 
1  ⎯ 0 ⎯ Reserved 
The initial value should not be changed. 
0  FMCMDEN  0  R/W  Flash Memory Software Command Enable 
Setting this bit to 1 (CPU programming mode) enables 
command acceptance. 
0: Flash memory software commands disabled 
1: Flash memory software commands enabled 
To set this bit to 1, be sure to write 0 and then write 1 in a 
row. 










