HD6432621 Hitachi, HD6432621 Datasheet - Page 438

• Manufacturer Part Number: HD6432621
• Description: (HD64F262x Series) 16-Bit Microcomputer
• Manufacturer: Hitachi

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.
Figure 11-10 illustrates the non-overlapping pulse output operation.
394
Pulse
output
pin
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.
Usage Notes
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