HD404849 Datasheet, PDF (68/125 Pages) Hitachi Semiconductor – 4-Bit Single-Chip Microcomputer

HD404849 Series
Timer mode register C2 (TMC2: $014)
Bit
Initial value
Read/Write
Bit name
3
2
—
0
—
R/W
Not used TMC22
1
0
R/W
TMC21
0
0
R/W
TMC20
TMC22 TMC21 TMC20
0
0
0
1
1
0
1
1
0
0
1
1
0
1
R1₁/TOC mode selection
R1₁
R1₁ port
TOC Toggle output
TOC 0 output
TOC 1 output
—
Inhibited
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 upper digit (TWCU). See 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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