SH7261 datasheet(569/1348 Pages) RENESAS

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Section 12 Multi-Function Timer Pulse Unit 2 (MTU2)

Rev. 2.00 Sep. 07, 2007 Page 537 of 1312

REJ09B0320-0200

12.5

Interrupt Sources

12.5.1

Interrupt Sources and Priorities

There are three kinds of MTU2 interrupt source; TGR input capture/compare match, TCNT

overflow, and TCNT underflow. Each interrupt source has its own status flag and enable/disabled

bit, allowing the generation of interrupt request signals to be enabled or disabled individually.

When an interrupt request is generated, the corresponding status flag in TSR is set to 1. If the

corresponding enable/disable bit in TIER is set to 1 at this time, an interrupt is requested. The

interrupt request is cleared by clearing the status flag to 0.

Relative channel priorities can be changed by the interrupt controller, however the priority order

within a channel is fixed. For details, see section 6, Interrupt Controller (INTC).

Table 12.57 lists the MTU2 interrupt sources.

Table 12.57 MTU2 Interrupts

Channel

Name

Interrupt Source

Interrupt Flag

DMAC

Activation

Priority

TGIA_0

TGRA_0 input capture/compare match

TGFA_0

Possible

High

TGIB_0

TGRB_0 input capture/compare match

TGFB_0

Not possible

TGIC_0

TGRC_0 input capture/compare match

TGFC_0

Not possible

TGID_0

TGRD_0 input capture/compare match

TGFD_0

Not possible

TCIV_0

TCNT_0 overflow

TCFV_0

Not possible

TGIE_0

TGRE_0 compare match

TGFE_0

Not possible

TGIF_0

TGRF_0 compare match

TGFF_0

Not possible

TGIA_1

TGRA_1 input capture/compare match

TGFA_1

Possible

TGIB_1

TGRB_1 input capture/compare match

TGFB_1

Not possible

TCIV_1

TCNT_1 overflow

TCFV_1

Not possible

TCIU_1

TCNT_1 underflow

TCFU_1

Not possible

TGIA_2

TGRA_2 input capture/compare match

TGFA_2

Possible

TGIB_2

TGRB_2 input capture/compare match

TGFB_2

Not possible

TCIV_2

TCNT_2 overflow

TCFV_2

Not possible

TCIU_2

TCNT_2 underflow

TCFU_2

Not possible

Low

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