Table of Contents
Advertisement
Section 9 16-Bit Timer Pulse Unit (TPU)
(1)
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 channel. The interrupt request is
cleared by clearing the TGF flag to 0. The TPU has 16 input capture/compare match interrupts,
four each for channels 0 and 3, and two each for channels 1, 2, 4, and 5.
(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 a TCNT overflow on a channel. The interrupt request is cleared by clearing
the TCFV flag to 0. The TPU has six overflow interrupts, one for each channel.
(3)
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 a TCNT underflow on a channel. The interrupt request is cleared by
clearing the TCFU flag to 0. The TPU has four underflow interrupts, one each for channels 1, 2, 4,
and 5.
9.6
DTC Activation
The DTC can be activated by the TGR input capture/compare match interrupt for a channel. For
details, see section 7, Data Transfer Controller (DTC).
A total of 16 TPU input capture/compare match interrupts can be used as DTC activation sources,
four each for channels 0 and 3, and two each for channels 1, 2, 4, and 5.
9.7
A/D Converter Activation
The TGRA input capture/compare match for each channel can activate the A/D converter.
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 TPU conversion start trigger has been selected on the A/D
converter side at this time, A/D conversion is started.
In the TPU, a total of six TGRA input capture/compare match interrupts can be used as A/D
converter conversion start sources, one for each channel.
Rev.2.00 Jun. 28, 2007 Page 372 of 666
REJ09B0311-0200
Advertisement
Table of Contents
