h8s-2649 Renesas Electronics Corporation., h8s-2649 Datasheet - Page 367
h8s-2649
Manufacturer Part Number
h8s-2649
Description
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.H8S-2649.pdf
(766 pages)
- Current page: 367 of 766
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11.4.5
During non-overlapping operation, transfer from NDR to PODR is performed as follows:
• NDR bits are always transferred on PODR bits on compare match A.
• On compare match B, NDR bits are transferred only if their value is 0. Bits are not transferred
Figure 11.6 illustrates the non-overlapping pulse output operation.
Therefore, 0 data can be transferred ahead of 1 data by making compare match B occur before
compare match A. The NDR contents should not be altered during the interval between compare
match B and compare match A (the non-overlap margin).
This can be accomplished by having the TGIA interrupt handling routine write the next data in
NDR, or by having the TGIA interrupt activate the DTC. Note, however, that the next data must
be written before the next compare match B occurs.
Figure 11.7 shows the timing of this operation.
if their value is 1.
Pulse
output
pin
Non-Overlapping Pulse Output
DDR
Figure 11.6 Non-Overlapping Pulse Output
Normal output/inverted output
Q
NDER
Q
PODR
C
D
Section 11 Programmable Pulse Generator (PPG)
Rev. 2.00 Dec. 05, 2005 Page 329 of 724
Q
NDR
Compare match A
Compare match B
D
Internal data bus
REJ09B0200-0200
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