HD6413008VF25 Datasheet, PDF (354/688 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

10. Programmable Timing Pattern Controller (TPC)
Therefore, 0 data can be transferred ahead of 1 data by making compare match B occur before
compare match A. 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 IMFA interrupt service routine write the next data in
NDR. The next data must be written before the next compare match B occurs.
Figure 10.10 shows the timing relationships.
Compare
match A
Compare
match B
NDR write
NDR write
NDR
DR
0 output 0/1 output
0 output
0/1 output
Write to NDR
in this interval
Do not write
to NDR in this
interval
Write to NDR
in this interval
Do not write
to NDR in this
interval
Figure 10.10 Non-Overlapping Operation and NDR Write Timing
Rev.4.00 Aug. 20, 2007 Page 308 of 638
REJ09B0395-0400