Datasheet
Section 11 16-Bit Timer Pulse Unit (TPU) 
Page 748 of 1384    R01UH0310EJ0500 Rev. 5.00 
 Sep 25, 2012 
H8S/2426, H8S/2426R, H8S/2424 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) 










