D12320VF25IV Datasheet, PDF (587/1304 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 11 Programmable Pulse Generator (PPG)
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 from compare
match B to 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 or DMAC*. Note, however, that the next
data must be written before the next compare match B occurs.
Figure 11.11 shows the timing of this operation.
Note: * The DMAC is not supported in the H8S/2321.
Compare match A
Compare match B
NDR
Write to NDR
Write to NDR
PODR
0 output 0/1 output
0 output 0/1 output
Write to NDR
Do not write ^here
to NDR here
Write to NDR
Do not write ^here
to NDR here
Figure 11.11 Non-Overlapping Operation and NDR Write Timing
Rev.6.00 Sep. 27, 2007 Page 555 of 1268
REJ09B0220-0600