Datasheet
Section 13 8-Bit Timers (TMR) 
Page 836 of 1384    R01UH0310EJ0500 Rev. 5.00 
 Sep 25, 2012 
H8S/2426, H8S/2426R, H8S/2424 Group
•  TCSR_1 
Bit  Bit Name  Initial Value  R/W  Description 
7 CMFB  0  R/(W)
*
  Compare Match Flag B 
[Setting condition] 
•  Set when TCNT matches TCORB 
[Clearing conditions] 
•  Cleared by reading CMFB when CMFB = 1, 
then writing 0 to CMFB 
•  When DTC is activated by CMIB interrupt while 
DISEL bit of MRB in DTC is 0 
6 CMFA  0  R/(W)
*
  Compare Match Flag A 
[Setting condition] 
•  Set when TCNT matches TCORA 
[Clearing conditions] 
•  Cleared by reading CMFA when CMFA = 1, 
then writing 0 to CMFA 
•  When DTC is activated by CMIA interrupt while 
DISEL bit of MRB in DTC is 0 
5 OVF  0  R/(W)
*
  Timer Overflow Flag 
[Setting condition] 
•  Set when TCNT overflows from H'FF to H'00 
[Clearing condition] 
•  Cleared by reading OVF when OVF = 1, then 
writing 0 to OVF 
4  ⎯ 1  R Reserved 
This bit is always read as 1 and cannot be 
modified. 










