Rev. 6.00, 08/04, page 556 of 628
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
3
TCW3
0
R/W
0
TCW0
0
R/W
2
TCW2
0
R/W
1
TCW1
0
R/W
4
TCW4
0
R/W
Count value
TMC—Timer Mode Register C
H'B4
Timer C
Bit
Initial value
Read/Write
7
TMC7
0
R/W
6
TMC6
0
R/W
5
TMC5
0
R/W
3
1
0
TMC0
0
R/W
2
TMC2
0
R/W
1
TMC1
0
R/W
4
1
Clock Select
0 0 0
1
1 0
1
1 0 0
1
1 0
1
Internal clock:
φ
/8192
Internal clock:
φ
/2048
Internal clock:
φ
/512
Internal clock:
φ
/64
Internal clock:
φ
/16
Internal clock:
φ
/4
Internal clock:
φ
W
/4
External event (TMIC):
rising or falling edge
Counter Up/Down Control
0
TCC is an up-counter
0
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
Содержание H8/38024 Series
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