M16CSLASH1N datasheet(101/238 Pages) RENESAS

101 / 238 page

Rev.1.00

Oct 20, 2004

page 89 of 222

M16C/1N Group

12. Timers

REJ09B0007-0100Z

Set to "1" by

software

Count start flag

The contents of Timer Y

TYOUT pin output

"1"

"0"

Timer Y interrupt

request bit

"H"

"L"

"1"

"0"

"1"

"0"

0216

0316

0116

0016

0216

0116

0016

0316

0216

0116

0016

0216

0116

Count start

fPY

Timer Y output

level latch

Cleared to "0"

by software

Timer Y

secondary

reload

Timer Y

primary

reload

Timer Y

secondary

reload

Cleared to "0" when interrupt

request is accepted,

or cleared by software

Waveform

output started

Waveform

output inverted

Waveform

output inverted

(Note 1)

Waveform

output inverted

Initialized to "L"

Secondary waveform

extended

Note 1: The waveform output in the secondary period is inverted after 0.5 clock (1 clock when

secondary waveform extended) of fPY from occurrence of Timer Y interrupt request.

Conditions: Timer Y primary=0316, Timer Y primary waveform not extended,

Timer Y secondary=0216, Timer Y secondary waveform extended,

Timer Y output level latch [TYOPL]=0

Figure 12.19 Timer Y operation example in programmable waveform generation mode

Programmable waveform generation output switching function

When the Timer Y programmable waveform generation output switching bit (bit 1 at address 008A16)

is set to 0, the output from TYOUT is inverted synchronously when the Timer Y secondary underflows.

And when set to 1, the Port P32 register value is output from TYOUT synchronously when the Timer Y

secondary underflows.

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