HD6432351 datasheet(558/1025 Pages) RENESAS

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Section 11 Programmable Pulse Generator (PPG)

Rev. 3.00 Sep 15, 2006 page 524 of 988

REJ09B0330-0300

11.3.4

Non-Overlapping Pulse Output

Sample Setup Procedure for Non-Overlapping Pulse Output

Figure 11.6 shows a sample procedure for setting up non-overlapping pulse output.

Select TGR functions

[1]

Set TGR values

Set counting operation

Select interrupt request

Set initial output data

Enable pulse output

Select output trigger

Set next pulse

output data

Start counter

Set next pulse

output data

Compare match?

Yes

TPU setup

PPG setup

TPU setup

Non-overlapping

PPG output

Set non-overlapping groups

[2]

[3]

[4]

[5]

[6]

[7]

[8]

[9]

[10]

[11]

[1] Set TIOR to make TGRA and

TGRB an output compare registers

(with output disabled)

[2] Set the pulse output trigger period

in TGRB and the non-overlap

margin in TGRA.

[3] Select the counter clock source

with bits TPSC2 to TPSC0 in TCR.

Select the counter clear source

with bits CCLR1 and CCLR0.

[4] Enable the TGIA interrupt in TIER.

The DTC or DMAC can also be set

up to transfer data to NDR.

[5] Set the initial output values in

PODR.

[6] Set the DDR and NDER bits for the

pins to be used for pulse output to

[7] Select the TPU compare match

event to be used as the pulse

output trigger in PCR.

[8] In PMR, select the groups that will

operate in non-overlap mode.

[9] Set the next pulse output values in

NDR.

[10] Set the CST bit in TSTR to 1 to

start the TCNT counter.

[11] At each TGIA interrupt, set the next

output values in NDR.

Figure 11.6 Setup Procedure for Non-Overlapping Pulse Output (Example)

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