HD64F3670 Datasheet, PDF (140/323 Pages) Renesas Technology Corp – Hitachi Single-Chip Microcomputer

10.3.4 Timer Control/Status Register V (TCSRV)
TCSRV indicates the status flag and controls outputs by using a compare match.
Bit Bit Name Initial Value R/W
7 CMFB
0
R/W
6 CMFA
0
R/W
5 OVF
0
R/W
4
1

3 OS3
0
R/W
2 OS2
0
R/W
1 OS1
0
R/W
0 OS0
0
R/W
Description
Compare Match Flag B
Setting condition:
When the TCNTV value matches the TCORB value
Clearing condition:
After reading CMFB = 1, cleared by writing 0 to CMFB
Compare Match Flag A
Setting condition:
When the TCNTV value matches the TCORA value
Clearing condition:
After reading CMFA = 1, cleared by writing 0 to CMFA
Timer Overflow Flag
Setting condition:
When TCNTV overflows from H'FF to H'00
Clearing condition:
After reading OVF = 1, cleared by writing 0 to OVF
Reserved
This bit is always read as 1.
Output Select 3 and 2
These bits select an output method for the TOMV pin by
the compare match of TCORB and TCNTV.
00: No change
01: 0 output
10: 1 output
11: Output toggles
Output Select 1 and 0
These bits select an output method for the TOMV pin by
the compare match of TCORA and TCNTV.
00: No change
01: 0 output
10: 1 output
11: Output toggles
Rev. 2.0, 03/02, page 116 of 298