hd64338023s Renesas Electronics Corporation., hd64338023s Datasheet - Page 618

• Manufacturer Part Number: hd64338023s
• Description: Renesas 8-bit Single-chip Microcomputer Super Low Power Series
• Manufacturer: Renesas Electronics Corporation.

Appendix B Internal I/O Registers
TCW—Timer Counter W
TMC—Timer Mode Register C
Rev. 7.00 Mar 10, 2005 page 576 of 652
REJ09B0042-0700
Bit
Initial value
Read/Write
Bit
Initial value
Read/Write
TMC7
Auto-Reload Function Select
R/W
0 Interval timer function selected
1 Auto-reload function selected
TCW7
R/W
7
0
7
0
TMC6
R/W
TCW6
Counter Up/Down Control
R/W
6
0
0
0
1 * Hardware control of TCC up/down operation by UD pin input
6
0
0
1 TCC is a down-counter
TCC is an up-counter
UD pin input high: Down-counter
UD pin input low: Up-counter
TMC5
R/W
TCW5
R/W
5
0
5
0
TCW4


R/W
4
1
Count value
4
0
TCW3


R/W
3
1
3
0
H'B3
H'B4
Clock Select
0 0 0
1 0 0
TMC2
R/W
1 0
1 0
TCW2
R/W
2
0
2
0
1
1
1
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
External event (TMIC):
rising or falling edge
TMC1
R/W
TCW1
R/W
1
0
Watchdog Timer
1
0
*: Don't care
TMC0
R/W
TCW0
R/W
0
0
W
Timer C
0
0
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