SH7137 Datasheet, PDF (426/1160 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperH™ RISC engine Family

Section 10 Multi-Function Timer Pulse Unit 2 (MTU2)
TCNT_3
TCNT_4
Period during which
changing skipping count
can be performed
Period during which
changing skipping count
can be performed
Period during which
changing skipping count
can be performed
Period during which
changing skipping count
can be performed
Figure 10.74 Periods during which Interrupt Skipping Count can be Changed
2. Example of Interrupt Skipping Operation
Figure 10.75 shows an example of TGIA_3 interrupt skipping in which the interrupt skipping
count is set to three by the 3ACOR bit and the T3AEN bit is set to 1 in the timer interrupt
skipping set register (TITCR).
TGIA_3 interrupt
flag set signal
Interrupt skipping period
Skipping counter 00
01
02
03
Interrupt skipping period
00
01
02
03
TGFA_3 flag
Figure 10.75 Example of Interrupt Skipping Operation
Rev. 2.00 Sep. 10, 2008 Page 400 of 1130
REJ09B0402-0200