SH7101 datasheet(228/486 Pages) RENESAS

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8. Multi-Function Timer Pulse Unit (MTU)

Rev.2.00 Sep. 27, 2007 Page 194 of 448

REJ09B0394-0200

Input Capture/Compare Match Interrupt: An interrupt is requested if the TGIE bit in TIER is

set to 1 when the TGF flag in TSR is set to 1 by the occurrence of a TGR input capture/compare

match on a particular channel. The interrupt request is cleared by clearing the TGF flag to 0. The

MTU has 16 input capture/compare match interrupts, four each for channels 0, 3, and 4, and two

each for channels 1 and 2.

Overflow Interrupt: An interrupt is requested if the TCIEV bit in TIER is set to 1 when the

TCFV flag in TSR is set to 1 by the occurrence of TCNT overflow on a channel. The interrupt

request is cleared by clearing the TCFV flag to 0. The MTU has five overflow interrupts, one for

each channel.

Underflow Interrupt: An interrupt is requested if the TCIEU bit in TIER is set to 1 when the

TCFU flag in TSR is set to 1 by the occurrence of TCNT underflow on a channel. The interrupt

request is cleared by clearing the TCFU flag to 0. The MTU has two underflow interrupts, one

each for channels 1 and 2.

8.5.2

A/D Converter Activation

The A/D converter can be activated by the TGRA input capture/compare match in each channel.

If the TTGE bit in TIER is set to 1 when the TGFA flag in TSR is set to 1 by the occurrence of a

TGRA input capture/compare match on a particular channel, a request to start A/D conversion is

sent to the A/D converter. If the MTU conversion start trigger has been selected on the A/D

converter at this time, A/D conversion starts.

In the MTU, a total of five TGRA input capture/compare match interrupts can be used as A/D

converter conversion start sources, one for each channel.

SH7101 Datasheet(PDF) 228 Page - Renesas Technology Corp