HD6417641 RENESAS [Renesas Technology Corp], HD6417641 Datasheet - Page 604

• Manufacturer Part Number: HD6417641
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 18 Multi-Function Timer Pulse Unit (MTU)
18.3.8
TSTR is an 8-bit readable/writable register that selects operation/stoppage for channels 0 to 4.
When setting the operating mode in TMDR or setting the count clock in TCR, first stop the TCNT
counter.
18.3.9
TSYR is an 8-bit readable/writable register that selects independent operation or synchronous
operation for the channel 0 to 4 TCNT counters. A channel performs synchronous operation when
the corresponding bit in TSYR is set to 1.
Rev. 4.00 Sep. 14, 2005 Page 554 of 982
REJ09B0023-0400
Bit
7
6
5 to 3
2
1
0
Timer Start Register (TSTR)
Timer Synchro Register (TSYR)
Bit Name
CST4
CST3

CST2
CST1
CST0
Initial
value
0
0
All 0
0
0
0
R/W
R/W
R/W
R
R/W
R/W
R/W
Description
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
Reserved
These bits are always read as 0. The write value should
always be 0.
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.
0: TCNT_2 and TCNT_0 count operation is stopped
1: TCNT_2 and TCNT_0 performs count operation