h8s-2628 Renesas Electronics Corporation., h8s-2628 Datasheet - Page 326

• Manufacturer Part Number: h8s-2628
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

Section 12 Programmable Pulse Generator (PPG)
12.4.3
Figure 12.4 shows a sample procedure for setting up normal pulse output.
Rev. 3.00 Oct 04, 2005 page 286 of 598
REJ09B0155-0300
TPU setup
Port and
PPG setup
TPU setup
Sample Setup Procedure for Normal Pulse Output
Figure 12.4 Setup Procedure for Normal Pulse Output (Example)
Set counting operation
Select interrupt request
Select TGR functions
Set initial output data
Enable pulse output
Select output trigger
Normal PPG output
Compare match?
Set TGRA value
Set next pulse
Set next pulse
Start counter
output data
output data
Yes
No
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10]
[1] Set TIOR to make TGRA an output
[2] Set the PPG output trigger period.
[3] Select the counter clock source with
[4] Enable the TGIA interrupt in TIER.
[5] Set the initial output values in
[6] Set the DDR and NDER bits for the
[7] Select the TPU compare match
[8] Set the next pulse output values in
[9] Set the CST bit in TSTR to 1 to start
[10] At each TGIA interrupt, set the next
compare register (with output
disabled).
bits TPSC2 to TPSC0 in TCR.
Select the counter clear source with
bits CCLR1 and CCLR0.
The DTC can also be set up to
transfer data to NDR.
PODR.
pins to be used for pulse output to 1.
event to be used as the output
trigger in PCR.
NDR.
the TCNT counter.
output values in NDR.