R8C13 datasheet(74/224 Pages) RENESAS

Part #	R8C13

Description	16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY/R8C/Tiny SERIES

PDF	224 Pages

Scroll/Zoom	100%

Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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74 / 224 page

Rev.1.20

Jan 27, 2006

page 63 of 205

REJ09B0111-0120

R8C/13 Group

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10.2.4 INT3 Interrupt

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INT3 interrupts are triggered by INT3 inputs. The TCC07 bit in the TCC0 register should be se to “0”

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(INT3). The INT3 input has a digital filter which can be sampled by one of three sampling clocks. The

sampling clock is selected using the TCC11 to TCC10 bits in the TCC1 register. The IR bit in the

INT3IC register is set to “1” (interrupt requested) when the sampled input level matches three times.

The P3_3 bit in the P3 register indicates the previous value before filtering regardless of values set in

the TCC11 to TCC10 bits.

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The INT3 pin is shared with the TCIN pin.

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When setting the TCC07 bit to “1” (fRING128), INT3 interrupts are triggered by fRING128 clock. The IR

bit in the INT3IC register is set to “1” (interrupt requested) every fRING128 clock cycle or every half

fRING128 clock cycle.

Figure 10.14 shows the TCC0 and TCC1 registers.

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10.2 INT Interrupt

R8C13 Datasheet(PDF) 74 Page - Renesas Technology Corp