HD404344R Datasheet, PDF (61/102 Pages) Renesas Technology Corp – 4-bit microcomputer has an A/D converter

HD404344R Series/HD404394 Series
• Timer write register C (TWCL: $00E, TWCU: $00F): Write-only register consisting of a lower digit
(TWCL: $00E) and an upper digit (TWCU: $00F), as shown in figures 37 and 38.
The operation of this register is the same as that of timer write register B.
Timer write register C (lower) (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 37 Timer Write Register C (lower) (TWCL)
Timer write register C (upper) (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 38 Timer Write Register C (upper) (TWCU)
• Timer read register C (TRCL: $00E, TRCU: $00F): Read-only register consisting of a lower digit
(TRCL: $00E) and upper digit (TRCU: $00F), which allows the upper digit of timer C to be read
directly (figures 39 and 40).
The operation of this register is the same as that of timer read register B.
Timer read register C (lower) (TRCL: $00E)
Bit
Initial value
Read/Write
Bit name
3
2
1
0
Undefined Undefined Undefined Undefined
R
R
R
R
TRCL3 TRCL2 TRCL1 TRCL0
Figure 39 Timer Read Register C (lower) (TRCL)
Timer read register C (upper) (TRCU: $00F)
Bit
Initial value
Read/Write
Bit name
3
2
1
0
Undefined Undefined Undefined Undefined
R
R
R
R
TRCU3 TRCU2 TRCU1 TRCU0
Figure 40 Timer Read Register C (upper) (TRCU)
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