HD64F3644PV Datasheet, PDF (468/551 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Appendix B Internal I/O Registers
B.2 Functions
Register
acronym
Register
name
Address to which the
register is mapped
Name of
on-chip
supporting
module
Bit
numbers
Initial bit
values
TMC—Timer mode register C
H'B4
Bit
7
6
5
4
TMC7 TMC6 TMC5
—
Initial value
0
0
0
1
Read/Write
R/W R/W R/W
—
Timer C
3
2
1
0
— TMC2 TMC1 TMC0
1
0
0
0
—
R/W
R/W
R/W
Possible types of access
R Read only
W Write only
R/W Read and write
Clock select
0 0 0 Internal clock: φ/8192
1 Internal clock: φ/2048
1 0 Internal clock: φ/512
1 Internal clock: φ/64
1 0 0 Internal clock: φ/16
1 Internal clock: φ/4
1 0 Internal clock: φ _W/4
1 External event (TMIC): Rising or falling edge
Names of the
bits. Dashes
(—) indicate
reserved bits.
Full name
of bit
Descriptions
of bit settings
Counter up/down control
0 0 TCC is an up-counter
1 TCC is a down-counter
1 * TCC up/down control is determined by input at pin
UD. TCC is a down-counter if the UD input is high,
and an up-counter if the UD input is low.
Auto-reload function select
* Don't care
0 Interval timer function selected
1 Auto-reload function selected
Rev. 6.00 Sep 12, 2006 page 446 of 526
REJ09B0326-0600