HD64F3437TFI16V Renesas Electronics America, HD64F3437TFI16V Datasheet - Page 240

• Manufacturer Part Number: HD64F3437TFI16V
• Description: MCU FLASH 60K 100-TQFP
• Manufacturer: Renesas Electronics America

Specifications of HD64F3437TFI16V

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

9.6.4
If identical time constants are written in TCORA and TCORB, causing compare-match A and B to
occur simultaneously, any conflict between the output selections for compare-match A and B is
resolved by following the priority order in table 9.4.
Table 9.4
Output Selection
Toggle
1 output
0 output
No change
9.6.5
When an internal clock source is changed, the changeover may cause the timer counter to
increment. This depends on the time at which the clock select bits (CKS1, CKS0) are rewritten, as
shown in table 9.5.
The pulse that increments the timer counter is generated at the falling edge of the internal clock
source signal. If clock sources are changed when the old source is high and the new source is low,
as in case no. 3 in table 9.5, the changeover generates a falling edge that triggers the TCNT clock
pulse and increments the timer counter.
Switching between an internal and external clock source can also cause the timer counter to
increment.
208
Contention between Compare-Match A and Compare-Match B
Increment Caused by Changing of Internal Clock Source
Priority of Timer Output
Priority
High
Low