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HD404849FS Datasheet(PDF) 77 Page - Renesas Technology Corp

Part # HD404849FS
Description  4-Bit Single-Chip Microcomputer
PDF  127 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

HD404849FS Datasheet(HTML) 77 Page - Renesas Technology Corp

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HD404849 Series
75
Bit
Initial value
Read/Write
Bit name
3
0
R/W
TMD23
2
0
R/W
TMD22
0
0
R/W
TMD20
1
0
R/W
TMD21
Timer mode register D2 (TMD2: $015)
TMD22
TMD20
0
1
0
1
0
1
0
1
TMD21
0
1
0
1
0
1
R12/TOD mode selection
R12
TOD
TOD
TOD
—
TOD
R12
R12 port
Toggle output
0 output
1 output
Inhibited
PWM output
Input capture (R12 port)
TMD23
0
1
Don’t care
Don’t care
Don’t care
Figure 60 Timer Mode Register D2 (TMD2)
• Timer write register D (TWDL: $011, TWDU: $012): Write-only register consisting of a lower digit
(TWDL) and upper digit (TWDU). See figures 61 and 62. The operation of timer write register D is
basically the same as that of timer write register B (TWBL: $00A, TWBU: $00B).
Bit
Initial value
Read/Write
Bit name
3
0
W
TWDL3
2
0
W
TWDL2
0
0
W
TWDL0
1
0
W
TWDL1
Timer write register D (lower digit) (TWDL: $011)
Figure 61 Timer Write Register D Lower Digit (TWDL)
Bit
Initial value
Read/Write
Bit name
3
Undefined
W
TWDU3
2
Undefined
W
TWDU2
0
Undefined
W
TWDU0
1
Undefined
W
TWDU1
Timer write register D (upper digit) (TWDU: $012)
Figure 62 Timer Write Register D Upper Digit (TWDU)



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