HD6473887 Datasheet, PDF (456/523 Pages) Renesas Technology Corp – Hitachi Single-Chip Microcomputer

TCW—Timer counter W
H'B3 Watchdog timer
Bit
Initial value
Read/Write
7
TCW7
0
R/W
6
TCW6
0
R/W
5
TCW5
0
R/W
4
TCW4
0
R/W
3
TCW3
0
R/W
2
TCW2
0
R/W
1
TCW1
0
R/W
0
TCW0
0
R/W
Count value
TMC—Timer mode register C
Bit
7
6
5
4
TMC7 TMC6 TMC5
—
Initial value
0
0
0
1
Read/Write
R/W R/W R/W
—
H'B4
Timer C
3
2
1
0
— TMC2 TMC1 TMC0
1
0
0
0
—
R/W
R/W
R/W
Clock select
0 0 0 Internal clock: ø/8192
0 0 1 Internal clock: ø/2048
0 1 0 Internal clock: ø/512
0 1 1 Internal clock: ø/64
1 0 0 Internal clock: ø/16
1 0 1 Internal clock: ø/4
1 1 0 Internal clock: øw/4
1
1
1
External event (TMIC): Counting
on rising or falling edge
Counter up/down control
0 0 TCC is an up-counter
0 1 TCC is a down-counter
1 _* Hardware control of TCC up/down operation by UD pin input
UD pin input high: Down-counter
UD pin input low: Up-counter
Auto-reload function select
0 Interval timer function selected
1 Auto-reload function selected
* Don’t care
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