SH7751 Datasheet, PDF (431/1224 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

12. Timer Unit (TMU)
12.5.2 TCNT Register Reads
When performing a TCNT register read, processing for synchronization with the timer count
operation is performed. If a timer count operation and register read processing are performed
simultaneously, the TCNT counter value prior to the count-down operation is read by means of the
synchronization processing.
12.5.3 Resetting the RTC Frequency Divider
When the on-chip RTC output clock is selected as the count clock, the RTC frequency divider
should be reset.
12.5.4 External Clock Frequency
Ensure that the external clock frequency for any channel does not exceed Pck/8.
Rev.4.00 Oct. 10, 2008 Page 333 of 1122
REJ09B0370-0400