413
Bits 7, 6, 5—Counter Clear 2, 1, and 0 (CCLR2, CCLR1, CCLR0): These bits select the
TCNT counter clearing source.
Bit 7
Bit 6
Bit 5
Channel
CCLR2
CCLR1
CCLR0
Description
0, 3
0
0
0
TCNT clearing disabled
(Initial value)
1
TCNT cleared by TGRA compare match/input
capture
1
0
TCNT cleared by TGRB compare match/input
capture
1
TCNT cleared by counter clearing for another
channel performing synchronous clearing/
synchronous operation
*
1
1
0
0
TCNT clearing disabled
1
TCNT cleared by TGRC compare match/input
capture
*
2
1
0
TCNT cleared by TGRD compare match/input
capture
*
2
1
TCNT cleared by counter clearing for another
channel performing synchronous clearing/
synchronous operation
*
1
Bit 7
Bit 6
Bit 5
Channel
Reserved
*
3
CCLR1
CCLR0
Description
1, 2, 4, 5
0
0
0
TCNT clearing disabled
(Initial value)
1
TCNT cleared by TGRA compare match/input
capture
1
0
TCNT cleared by TGRB compare match/input
capture
1
TCNT cleared by counter clearing for another
channel performing synchronous clearing/
synchronous operation
*
1
Notes: 1. Synchronous operation setting is performed by setting the SYNC bit in TSYR to 1.
2. When TGRC or TGRD is used as a buffer register, TCNT is not cleared because the
buffer register setting has priority, and compare match/input capture does not occur.
3. Bit 7 is reserved in channels 1, 2, 4, and 5. It is always read as 0 and cannot be
modified.
Содержание H8S/2631
Страница 28: ...xviii Appendix G Package Dimensions 1154 ...
Страница 341: ...316 Transfer SAR or DAR DAR or SAR Block area First block Nth block Figure 9 8 Memory Mapping in Block Transfer Mode ...
Страница 918: ...905 ø DREQ0 DREQ1 tDRQS tDRQH Figure 25 19 DMAC DREQ Input Timing ...
Страница 955: ...943 A 2 Instruction Codes Table A 2 shows the instruction codes ...