HD6412320 RENESAS [Renesas Technology Corp], HD6412320 Datasheet - Page 584

• Manufacturer Part Number: HD6412320
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family H8S-2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 11 Programmable Pulse Generator (PPG)
11.4
11.4.1
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
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
Figure 11.10 illustrates the non-overlapping pulse output operation.
Rev.6.00 Sep. 27, 2007 Page 554 of 1268
REJ09B0220-0600
Pulse
output
pin
if their value is 1.
Usage Notes
Operation of Pulse Output Pins
Note on Non-Overlapping Output
DDR
Figure 11.10 Non-Overlapping Pulse Output
Normal output/inverted output
NDER
Q
Q
PODR
C
D
Q
NDR
Compare match A
Compare match B
D
Internal data bus