426
B.2
Functions
TMC—Timer mode register C
H'B4
Timer C
Register
name
Address to which the
register is mapped
Name of
on-chip
supporting
module
Register
acronym
Bit
numbers
Initial bit
values
Names of the
bits. Dashes
(
—
) indicate
reserved bits.
Full name
of bit
Descriptions
of bit settings
Read only
Write only
Read and write
R
W
R/W
Possible types of access
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
Internal clock:
Internal clock:
Internal clock:
Internal clock:
Internal clock:
Internal clock:
Internal clock:
External event (TMIC):
1
1 0
1
1 0 0
1
1 0
1
/8192
/2048
/512
/64
/16
/4
/4
W
Rising or falling edge
Counter up/down control
TCC is an up-counter
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.
0 0
1
*
Auto-reload function select
Interval timer function selected
Auto-reload function selected
1
*
: Don
’
t care
0