HD6433682 ETC, HD6433682 Datasheet - Page 264

• Manufacturer Part Number: HD6433682
• Description: Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Tiny Series
• Manufacturer: ETC

9.
Rev. 3.00, 05/03, page 234 of 472
Example: When clearing bit 4 (OVF) in TSR
MOV.B @TSR,R0L
MOV.B #B'11101111, R0L
MOV.B R0L,@TSR
Note on Clearing TSR Flag: When a specific flag in TSR is cleared, a combination of the
BCLR or MOV instructions is used to read 1 from the flag and then write 0 to the flag.
However, if another bit is set during this processing, the bit may also be cleared
simultaneously. To avoid this, the following processing that does not use the BCLR
instruction must be executed. Note that this note is only applied to the F-ZTAT version. This
problem has already been solved in the mask ROM version.
the other bits are all set to 1.
Only the bit to be cleared is 0 and