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HD404639R Datasheet, PDF (72/135 Pages) Renesas Technology Corp – 4-Bit Single-Chip Microcomputer
HD404639R Series
Timer mode register C2 (TMC2: $014)
Bit
3
2
1
Initial value
—
0
0
Read/Write
—
R/W R/W
Bit name
Not used TMC22 TMC21
0
0
R/W
TMC20
TMC22 TMC21 TMC20
0
0
0
1
1
0
1
1
0
0
1
1
0
1
R31/TOC mode selection
R31
R31 port
TOC Toggle output
TOC 0 output
TOC 1 output
TOC Inhibited
TOC
TOC
TOC PWM output
Figure 53 Timer Mode Register C2 (TMC2)
• Timer write register C (TWCL: $00E, TWCU: $00F): Write-only register consisting of a lower digit
(TWCL) and an upper digit (TWCU) as shown in figures 54 and 55. The operation of timer write
register C is basically the same as that of timer write register B (TWBL: $00A, TWBU: $00B).
Timer write register C (lower digit) (TWCL: $00E)
Bit
Initial value
Read/Write
Bit name
3
0
W
TWCL3
2
0
W
TWCL2
1
0
W
TWCL1
0
0
W
TWCL0
Figure 54 Timer Write Register C Lower Digit (TWCL)
Timer write register C (upper digit) (TWCU: $00F)
Bit
Initial value
Read/Write
Bit name
3
2
1
0
Undefined Undefined Undefined Undefined
W
W
W
W
TWCU3 TWCU2 TWCU1 TWCU0
Figure 55 Timer Write Register C Upper Digit (TWCU)
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