HD64F2145 datasheet(300/829 Pages) RENESAS

300 / 829 page

Rev. 2.0, 08/02, page 260 of 788

Compare-match

signal

Input capture

mask signal

ICRD + OCRDM

× 2

FRC

N + 1

Figure 11.16 Timing of Input Capture Mask Signal Clearing

11.6

Interrupt Sources

The free-running timer can request seven interrupts: ICIA to ICID, OCIA, OCIB, and FOVI. Each

interrupt can be enabled or disabled by an enable bit in TIER. Independent signals are sent to the

interrupt controller for each interrupt. Table 11.2 lists the sources and priorities of these interrupts.

The ICIA, ICIB, OCIA, and OCIB interrupts can be used as the on-chip DTC activation sources.

Table 11.2

FRT Interrupt Sources

Interrupt

Interrupt Source

Interrupt Flag

DTC

Activation

Priority

ICIA

Input capture of ICRA

ICFA

Enabled

High

ICIB

Input capture of ICRB

ICFB

Enabled

ICIC

Input capture of ICRC

ICFC

Disabled

ICID

Input capture of ICRD

ICFD

Disabled

OCIA

Compare match of OCRA

OCFA

Enabled

OCIB

Compare match of OCRB

OCFB

Enabled

FOVI

Overflow of FRC

OVF

Disabled

Low

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