HD6433044 Datasheet, PDF (319/867 Pages) Hitachi Semiconductor – Hitachi Single-Chip Microcomputer

10.2 Register Descriptions
10.2.1 Timer Start Register (TSTR)
TSTR is an 8-bit readable/writable register that starts and stops the timer counter (TCNT) in
channels 0 to 4.
Bit
7
6
5
4
3
2
1
0
—
—
—
STR4 STR3 STR2 STR1 STR0
Initial value
1
1
1
0
0
0
0
0
Read/Write
—
—
—
R/W R/W
R/W
R/W R/W
Reserved bits
Counter start 4 to 0
These bits start and
stop TCNT4 to TCNT0
TSTR is initialized to H'E0 by a reset and in standby mode.
Bits 7 to 5—Reserved: Read-only bits, always read as 1.
Bit 4—Counter Start 4 (STR4): Starts and stops timer counter 4 (TCNT4).
Bit 4
STR4
0
1
Description
TCNT4 is halted
TCNT4 is counting
(Initial value)
Bit 3—Counter Start 3 (STR3): Starts and stops timer counter 3 (TCNT3).
Bit 3
STR3
0
1
Description
TCNT3 is halted
TCNT3 is counting
(Initial value)
Bit 2—Counter Start 2 (STR2): Starts and stops timer counter 2 (TCNT2).
Bit 2
STR2
0
1
Description
TCNT2 is halted
TCNT2 is counting
(Initial value)
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