M16CSLASH29 datasheet(459/499 Pages) RENESAS

номер детали	M16C/29

подробное описание детали	RENESAS MCU M16C FAMILY / M16C/Tiny SERIES

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22. Usage Notes

page 435

22.7 Timer S

22.7.1 Rewrite the G1IR Register

Bits in the G1IR register are not automatically set to 0 (no interrupt requested) even if a requested inter-

rupt is acknowledged. Set each bit to 0 by program after the interrupt requests are verified.

The IC/OC interrupt is generated when any bit in the G1IR register is set to 1 (interrupt requested) after all

the bits are set to 0. If conditions to generate an interrupt are met when the G1IR register holds the value

other than 0016, the IC/OC interrupt request will not be generated. In order to enable an IC/OC interrupt

request again, clear the G1IR register to 0016. Use the following instructions to set each bit in the G1IR

Subject instructions: AND, BCL

Figure 22.3

shows an example of IC/OC interrupt i flow chart.

Interrupt(1)

Set the G1IRi bit to 0

Set the G1IRj bit to 0

Process channel i waveform generating interrupt

Process channel j time measurement interrupt

Interrupt completed

NOTE:

1. Example for the interrupt operation when using the channel i waveform generating interrupt and

channel j time measurement interrupt.

G1IRi = 1 ?

G1IRj = 1 ?

G1IR = 0 ?

Yes

Figure 22.3 IC/OC Interrupt i Flow Chart

M16C/29 датащи(PDF) 459 Page - Renesas Technology Corp