r4f2456 Renesas Electronics Corporation., r4f2456 Datasheet - Page 807
r4f2456
Manufacturer Part Number
r4f2456
Description
16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.R4F2456.pdf
(1376 pages)
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12.4.2
Figure 12.4 shows a sample procedure for setting up normal pulse output.
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
Select output trigger
Enable pulse output
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]
Section 12 Programmable Pulse Generator (PPG)
[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 CCLR2 to CCLR0.
The DTC or DMAC 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.
Rev. 1.00 Sep. 19, 2008 Page 777 of 1342
REJ09B0467-0100
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