r4f2456 Renesas Electronics Corporation., r4f2456 Datasheet - Page 749

• Manufacturer Part Number: r4f2456
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
• Manufacturer: Renesas Electronics Corporation.

(1)
Figure 11.11 shows an example of the synchronous operation setting procedure.
[1] Set to 1 the SYNC bits in TSYR corresponding to the channels to be designated for synchronous operation.
[2] When the TCNT counter of any of the channels designated for synchronous operation is written to, the
[3] Use bits CCLR2 to CCLR0 in TCR to specify TCNT clearing by input capture/output compare, etc.
[4] Use bits CCLR2 to CCLR0 in TCR to designate synchronous clearing for the counter clearing source.
[5] Set to 1 the CST bits in TSTR for the relevant channels, to start the count operation.
same value is simultaneously written to the other TCNT counters.
<Synchronous presetting>
Example of Synchronous Operation Setting Procedure
Synchronous presetting
Synchronous operation
Set synchronous
Set TCNT
Figure 11.11 Example of Synchronous Operation Setting Procedure
operation
selection
[1]
[2]
Synchronous clearing
<Counter clearing>
source generation
clearing source
Select counter
Start count
channel?
Clearing
Yes
No
Rev. 1.00 Sep. 19, 2008 Page 719 of 1342
[3]
[5]
Section 11 16-Bit Timer Pulse Unit (TPU)
<Synchronous clearing>
Set synchronous
counter clearing
Start count
REJ09B0467-0100
[4]
[5]