Datasheet

Section 11 Programmable Pulse Generator (PPG)
Rev.6.00 Sep. 27, 2007 Page 554 of 1268
REJ09B0220-0600
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.
Compare match A
Compare match B
Pulse
output
pin
Normal output/inverted output
C
PODRQD
NDER
Q
NDRQD
Internal data bus
DDR
Figure 11.10 Non-Overlapping Pulse Output