Renesas R5S72626 Manual Do Utilizador
Section 11 Multi-Function Timer Pulse Unit 2
Page 482 of 2108
R01UH0134EJ0400 Rev. 4.00
Sep
24,
2014
SH7262 Group, SH7264 Group
11.3.13
Timer Start Register (TSTR)
TSTR is an 8-bit readable/writable register that selects operation/stoppage of TCNT for channels 0
to 4.
to 4.
When setting the operating mode in TMDR or setting the count clock in TCR, first stop the TCNT
counter.
counter.
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
Value R/W Description
7
CST4
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.
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
6 CST3 0 R/W
5 to 3
All
0
R
Reserved
These bits are always read as 0. The write value should
always be 0.
always be 0.
2
CST2
0
R/W
Counter Start 2 to 0
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.
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_2 to TCNT_0 count operation is stopped
1: TCNT_2 to TCNT_0 performs count operation
1 CST1 0 R/W
0 CST0 0 R/W