h8s-2646 Renesas Electronics Corporation., h8s-2646 Datasheet - Page 443

• Manufacturer Part Number: h8s-2646
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

11.4
Operation of Pulse Output Pins: Pins PO8 to PO15 are also used for other peripheral functions
such as the TPU. When output by another peripheral 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.
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
Figure 11.10 illustrates the non-overlapping pulse output operation.
Pulse
output
pin
if their value is 1.
Usage Notes
DDR
Figure 11.10 Non-Overlapping Pulse Output
Normal output/inverted output
Q
NDER
Q
PODR
C
Section 11 Programmable Pulse Generator (PPG)
D
Rev. 5.00 Sep 22, 2005 page 417 of 1136
Q
NDR
Compare match A
Compare match B
D
REJ09B0257-0500
Internal data bus