H8SLASH3021 datasheet(333/712 Pages) RENESAS

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9. Programmable Timing Pattern Controller

Rev.2.00 Mar. 22, 2007 Page 309 of 684

REJ09B0352-0200

9.3.4

Non-Overlapping TPC Output

Sample Setup Procedure for Non-Overlapping TPC Output: Figure 9.6 shows a sample

procedure for setting up non-overlapping TPC output.

Non-overlapping

TPC output

Set next TPC output data

Compare match A?

Yes

Set next TPC output data

Start counter

ITU setup

Port and

TPC setup

ITU setup

Set initial output data

Set up TPC output

Enable TPC transfer

Select TPC transfer trigger

Select non-overlapping groups

10.

11.

12.

Set TIOR to make GRA and GRB output

compare registers (with output inhibited).

Set the TPC output trigger period in GRB

and the non-overlap margin in GRA.

Select the counter clock source with bits

TPSC2 to TPSC0 in TCR. Select the counter

clear source with bits CCLR1 and CCLR0.

Enable the IMFA interrupt in TIER.

Set the initial output values in the DR bits

of the input/output port pins to be used for

TPC output.

Set the DDR bits of the input/output port pins

to be used for TPC output to 1.

Set the NDER bits of the pins to be used for

TPC output to 1.

In TPCR, select the ITU compare match

event to be used as the TPC output trigger.

In TPMR, select the groups that will operate

in non-overlap mode.

Set the next TPC output values in the NDR

bits.

Set the STR bit to 1 in TSTR to start the timer

counter.

At each IMFA interrupt, write the next output

value in the NDR bits.

Select GR functions

Set GR values

Select counting operation

Select interrupt requests

Figure 9.6 Setup Procedure for Non-Overlapping TPC Output (Example)

H8/3021 Datasheet(PDF) 333 Page - Renesas Technology Corp

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