3069RF-ZTAT Datasheet, PDF (914/1003 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER

8TCSR2—Timer Control/Status Register 2
8TCSR3—Timer Control/Status Register 3
H'FFF92
H'FFF93
8-bit timer channel 2
8-bit timer channel 3
TCSR2
Bit
7
6
5
4
CMFB CMFA OVF
Initial value
0
0
0
1
Read/Write R/(W)* R/(W)* R/(W)*
TCSR3
Bit
7
6
5
4
CMFB CMFA OVF ICE
Initial value
0
0
0
0
Read/Write R/(W)* R/(W)* R/(W)* R/W
3
OIS3
0
R/W
3
OIS3
0
R/W
2
OIS2
0
R/W
2
OIS2
0
R/W
1
OS1
0
R/W
1
OS1
0
R/W
0
OS0
0
R/W
0
OS0
0
R/W
Output select A1 and A0
Bit 1 Bit 0
OS1 OS0
Description
0 No change at compare match A
0
1 0 output at compare match A
0 1 output at compare match A
1
1
Output toggles at compare
match A
Output/input capture edge select B3 and B2
ICE in Bit 3 Bit 3
TCSR3 _{OIS3 OIS2}
Description
0 No change at compare match B
0
1 0 output at compare match B
0
0 1 output at compare match B
1
1
Output toggles at compare match
B
0
TCORB input capture on rising
edge
0
1
1 ^{TCORB input capture on falling}
edge
1
0 TCORB input capture on both
rising and falling edges
Input capture enable (TCSR3 only)
0 TCORB is a compare match register
1 TCORB is an input capture register
Timer overflow flag
0 ^{[Clearing condition]}
Read OVF when OVF = 1, then write 0 in OVF
1
[Setting condition]
TCNT overflows from H'FF to H'00
Compare match flag A
0
[Clearing condition]
Read CMFA when CMFA = 1, then write 0 in CMFA
1
[Setting condition]
TCNT = TCORA
Compare match/input capture flag B
0
[Clearing condition]
Read CMFB when CMFB = 1, then write 0 in CMFB
[Setting conditions]
1
TCNT = TCORB
The TCNT value is transferred to TCORB by an input capture signal when
TCORB functions as an input capture register.
Note: * Only 0 can be written to bits 7 to 5, to clear these flags.
Rev. 5.0, 09/04, page 892 of 978