Section 9 Multi-Function Timer Pulse Unit 2 (MTU2)
Rev. 3.00 Sep. 27, 2007 Page 210 of 758
REJ09B0243-0300
9.3.14
Timer Start Register (TSTR)
TSTR is an 8-bit readable/writable register that selects operation/stoppage of TCNT for channels 0
to 4.
TSTR_5 is an 8-bit readable/writable register that selects operation/stoppage of TCNTU_5,
TCNTV_5, and TCNTW_5 for channel 5.
When setting the operating mode in TMDR or setting the count clock in TCR, first stop the TCNT
counter.
•
TSTR
Bit:
Initial value:
R/W:
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
0
R/W
R/W
R
R
R
R/W
R/W
R/W
CST4
CST3
-
-
-
CST2
CST1
CST0
Bit Bit
Name
Initial
Value
R/W Description
7 CST4 0 R/W
6 CST3 0 R/W
Counter Start 4 and 3
These bits select operation or stoppage for TCNT.
If 0 is written to the CST bit during operation with the
TIOC pin designated for output, the counter stops but
the TIOC pin output compare output level is retained. If
TIOR is written to when the CST bit is cleared to 0, the
pin output level will be changed to the set initial output
value.
0: TCNT_4 and TCNT_3 count operation is stopped
1: TCNT_4 and TCNT_3 performs count operation
5 to 3
—
All 0
R
Reserved
These bits are always read as 0. The write value should
always be 0.
Содержание SH7124 R5F7124
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