Datasheet

Section 11 16-Bit Timer Pulse Unit (TPU)
Page 740 of 1408 R01UH0309EJ0500 Rev. 5.00
Sep 24, 2012
H8S/2456, H8S/2456R, H8S/2454 Group
11.3.11 Timer Synchronous Register B (TSYRB)
TSYRB selects independent operation or synchronous operation for the TCNT counters of
channels 6 to 11. A channel performs synchronous operation when the corresponding bit in
TSYRB is set to 1.
Bit Bit Name Initial value R/W Description
7
6
⎯
⎯
0
0
⎯
⎯
Reserved
The write value should always be 0.
5
4
3
2
1
0
SYNC11
SYNC10
SYNC9
SYNC8
SYNC7
SYNC6
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
Timer Synchronization 11 to 6
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_11 to TCNT_6 operates independently
(TCNT presetting /clearing is unrelated to
other channels)
1: TCNT_11 to TCNT_6 performs synchronous
operation (TCNT synchronous presetting/
synchronous clearing is possible)