HD6433937 Datasheet, PDF (438/521 Pages) Hitachi Semiconductor – Hardware Manual

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: ø/8192
1 Internal clock: ø/2048
1 0 Internal clock: ø/512
1 Internal clock: ø/64
1 0 0 Internal clock: ø/16
1 Internal clock: ø/4
1 0 Internal clock: ø_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
0 Interval timer function selected
1 Auto-reload function selected
*: Don’t care
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