E202075_HD404889 Datasheet, PDF (110/202 Pages) Renesas Technology Corp – Low-Voltage AS Microcomputers with On-Chip LCD Circuit

HD404889/HD404899/HD404878/HD404868 Series
Timer mode register D2 (TMD2: $019)
Bit
3
2
Read/Write
Initial value on reset
Bit name
—
W
—
0
—
TMD22
1
W
0
TMD21
0
W
0
TMD20
TMD22
0
1
TMD21
0
1
TMD20
0
1
0
1
EVND pin detected edge
Not detected
Falling edge detection
Rising edge detection
Both rising and falling edge detection
Input capture setting
Free-running/reload timer
Input capture timer
Figure 57 Timer Mode Register D2 (TMD2)
• Timer write register D (TWDL: $01A, TWDU: $01B):
Timer write register D (TWDL, TWDU) is a write-only register composed of a lower digit (TWDL) and
an upper digit (TWDU) (figures 58 and 59).
Timer write register D (TWDL, TWDU) operation is similar to that for timer write register B (TWBL,
TWBU).
Timer write register D (lower) (TWDL: $01A)
Bit
Read/Write
Initial value on reset
Bit name
3
W
0
TWDL3
2
W
0
TWDL2
1
W
0
TWDL1
0
W
0
TWDL0
Figure 58 Timer Write Register D (Lower) (TWDL)
108