Hitachi HD6473867 Hardware Manual page 423

TCW—Timer counter W
Bit 7
TCW7
Initial value 0
Read/Write R/W
TMC—Timer mode register C
Bit 7
TMC7
Initial value 0
Read/Write R/W
Auto-reload function select
0 Interval timer function selected
1 Auto-reload function selected
6 5
TCW6 TCW5
0 0
R/W R/W
6 5
TMC6 TMC5
0 0
R/W R/W
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
H'B3
4
3
TCW4 TCW3 TCW2
0 0
R/W R/W
Count value
H'B4
4 3
— — TMC2
1 1
— —
Clock select
0 0 Internal clock:
0
1 Internal clock:
0 0
0 Internal clock:
0 1
1 Internal clock:
0 1
0 Internal clock:
0
1
1 Internal clock:
0
1
1 0 Internal clock:
1
External event (TMIC): Counting
1
1 1
on rising or falling edge
419
Watchdog timer
2 1
TCW1 TCW0
0 0
R/W R/W
2 1
TMC1 TMC0
0 0
R/W R/W
ø/8192
ø/2048
ø/512
ø/64
ø/16
ø/4
øw/4
* : Don't care
0
0
R/W
Timer C
0
0
R/W