HD6473032F16 Datasheet, PDF (445/847 Pages) Renesas Technology Corp – Hardware Manual Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series

Section 11 Programmable Timing Pattern Controller
11.3.3 Normal TPC Output
Sample Setup Procedure for Normal TPC Output: Figure 11.4 shows a sample procedure for
setting up normal TPC output.
ITU setup
Port and
TPC setup
ITU setup
Normal TPC output
Select GR functions
1
Set GRA value
2
Select counting operation
3
Select interrupt request
4
Set initial output data
5
Select port output
6
Enable TPC output
7
Select TPC output trigger
8
Set next TPC output data
9
Start counter
10
No
Compare match?
Yes
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11
1. Set TIOR to make GRA an output
compare register (with output inhibited).
2. Set the TPC output trigger period.
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 IMFA interrupt in TIER. The
DMAC can also be set up to transfer
data to the next data register.
5. Set the initial output values in the DR
bits of the input/output port pins to be
used for TPC output.
6. Set the DDR bits of the input/output port
pins to be used for TPC output to 1.
7. Set the NDER bits of the pins to be
used for TPC output to 1.
8. Select the ITU compare match event to
be used as the TPC output trigger in
TPCR.
9. Set the next TPC output values in the
NDR bits.
10. Set the STR bit to 1 in TSTR to start the
timer counter.
11. At each IMFA interrupt, set the next
output values in the NDR bits.
Figure 11.4 Setup Procedure for Normal TPC Output (Example)
Rev. 3.00 Mar 21, 2006 page 415 of 814
REJ09B0302-0300