r5f21368sdfp Renesas Electronics Corporation., r5f21368sdfp Datasheet - Page 263

• Manufacturer Part Number: r5f21368sdfp
• Description: Renesas Mcu R8c Family / R8c/3xt-a Series
• Manufacturer: Renesas Electronics Corporation.

Under development
R8C/36T-A Group
R01UH0240EJ0001 Rev.0.01
Apr 28, 2011
15.4
Figure 15.2
15.4.1
Regardless of the operating mode, the timing of the rewrite operation to the reload register and the counter
differs depending on the value of the TSTART bit in the TRJCR register. When the TSTART bit is 0 (count
stops), the count value is directly written to the reload register, and then to the counter in synchronization with
the next count source. When the TSTART bit is 1 (count starts), the value is written to the reload register in
synchronization with the count source, and then to the counter in synchronization with the next count source.
Figure 15.2 shows the Timing of Rewrite Operation with TSTART Bit Value.
Counter load signal
Counter load clock
Operation
Timer RJ counter
TRJCR register
Reload register
Reload register
Reload register
TSTART bit in
Count source
Reload Register and Counter Rewrite Operation
TRJ register
load signal
load clock
Preliminary document
Specifications in this document are tentative and subject to change.
Timing of Rewrite Operation with TSTART Bit Value
Write 5678h to TRJ register by a program
FFFFh
FFFFh
FFFFh
5678h
5678h
5678h
5677h 5676h 5675h 5674h 5673h 5672h 5671h 5670h 566Fh 1234h 1233h
Write 1234h to TRJ register by a program
1234h
1234h
Page 232 of 725
1232h
15. Timer RJ