Section 9 16-Bit Timer Pulse Unit (TPU)
Rev. 3.00 Mar. 14, 2006 Page 298 of 804
REJ09B0104-0300
9.3.9
Timer Synchronous Register (TSYR)
TSYR selects independent operation or synchronous operation for the TCNT counters of channels
0 to 5. A channel performs synchronous operation when the corresponding bit in TSYR is set to 1.
7
—
0
R/W
6
—
0
R/W
5
SYNC5
0
R/W
4
SYNC4
0
R/W
3
SYNC3
0
R/W
2
SYNC2
0
R/W
1
SYNC1
0
R/W
0
SYNC0
0
R/W
Bit
Bit Name
Initial Value
R/W
Bit Bit
Name
Initial
value R/W Description
7, 6
All
0
R/W
Reserved
These bits are always read as 0. The write value should
always be 0.
5
4
3
2
1
0
SYNC5
SYNC4
SYNC3
SYNC2
SYNC1
SYNC0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
Timer Synchronization 5 to 0
These bits select whether operation is independent of or
synchronized with other channels.
When synchronous operation is selected, synchronous
presetting of multiple channels, and synchronous clearing
through counter clearing on another channel are possible.
To set synchronous operation, the SYNC bits for at least
two channels must be set to 1. To set synchronous
clearing, in addition to the SYNC bit, the TCNT clearing
source must also be set by means of bits CCLR2 to
CCLR0 in TCR.
0: TCNT_5 to TCNT_0 operate independently (TCNT
presetting/clearing is unrelated to other channels)
1: TCNT_5 to TCNT_0 perform synchronous operation
(TCNT synchronous presetting/synchronous clearing
is possible)
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Содержание H8SX series
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