32186 datasheet(477/1032 Pages) RENESAS

477 / 1032 page

10.8 TOU (Output-Related 24-Bit Timer)

MULTIJUNCTION TIMERS

10-181

32185/32186 Group Hardware Manual

Rev.1.10 REJ09B0235-0110 May 15, 07

Figure 10.8.12 Typical Operation in TOU Single-shot PWM Output Mode (without Correction Function)

H'A000

H'F000

H'(A000-1)

DMA transfer reqiest

Count clock

Enabled

(by writing to the enable bit

or by external input)

F/F output

Underflow

(first time)

Interrupt request

due to underflow

Enable bit

Reload 0 register

Underflow

(second time)

Reload 1 register

One count clock equivalent delay

Undefined

value

(Note 1)

(Note 2)

H'FFFF

H'0000

H'A000

H'F000

H'(F000-1)

Counter

Data inverted

by underflow

Data inverted

by underflow

One count clock equivalent delay

PWM output period

Reload 1 buffer

Note 1: The value that "reload 0 register - 1" is reloaded.

Note 2: The value that "reload 1 buffer - 1" is reloaded.

Note 3: Updating of reload 0 and reload 1 during timer operation does not effect PWM waveform

that is outputting at present.

Updating is reflected at the next PWM period after updating reload 0 register.

Note: • This diagram does not show detailed timing information.

32186 Datasheet(PDF) 477 Page - Renesas Technology Corp

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