HD404654 Datasheet, PDF (62/111 Pages) Hitachi Semiconductor – 4-Bit Single-Chip Microcomputer

HD404654 Series
Timer mode register D2 (TMD2: $015)
Bit
3
2
1
Initial value
0
0
0
Read/Write
R/W
R/W
R/W
Bit name
TMD23 TMD22 TMD21
0
0
R/W
TMD20
TMD23 TMD22 TMD21 TMD20
0
0
0
0
R3₂/TOD mode selection
R3₂
R3₂ port
1
TOD Toggle output
1
0
TOD 0 output
1
TOD 1 output
1
0
0
—
Inhibited
1
1
0
1
TOD PWM output
1 Don’t care Don’t care Don’t care R3₂ Input capture (R3₂ port)
Figure 45 Timer Mode Register D2 (TMD2)
• Timer write register D (TWDL: $011, TWDU: $012): Write-only register consisting of a lower digit
(TWDL) and an upper digit (TWDU) as shown in figures 46 and 47. The operation of timer write
register D is basically the same as that of timer write register C (TWCL: $00E, TWCU: $00F).
Timer write register D (lower digit) (TWDL: $011)
Bit
Initial value
Read/Write
Bit name
3
0
W
TWDL3
2
0
W
TWDL2
1
0
W
TWDL1
0
0
W
TWDL0
Figure 46 Timer Write Register D Lower Digit (TWDL)
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