D12320VF25IV Datasheet, PDF (586/1304 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 11 Programmable Pulse Generator (PPG)
11.4 Usage Notes
11.4.1 Operation of Pulse Output Pins
Pins PO0 to PO15 are also used for other supporting functions such as the TPU. When output by
another supporting function is enabled, the corresponding pins cannot be used for pulse output.
Note, however, that data transfer from NDR bits to PODR bits takes place, regardless of the usage
of the pins.
Pin functions should be changed only under conditions in which the output trigger event will not
occur.
11.4.2 Note on Non-Overlapping Output
During non-overlapping operation, the transfer of NDR bit values to PODR bits takes place as
follows.
• NDR bits are always transferred to PODR bits at compare match A.
• At compare match B, NDR bits are transferred only if their value is 0. Bits are not transferred
if their value is 1.
Figure 11.10 illustrates the non-overlapping pulse output operation.
Pulse
output
pin
DDR
NDER
Q
Compare match A
Compare match B
C
Q PODR D
Q NDR D
Internal data bus
Normal output/inverted output
Figure 11.10 Non-Overlapping Pulse Output
Rev.6.00 Sep. 27, 2007 Page 554 of 1268
REJ09B0220-0600