HD643303x Hitachi, HD643303x Datasheet - Page 308

• Manufacturer Part Number: HD643303x
• Description: Hitachi Microcomputer
• Manufacturer: Hitachi

9.4 Usage Notes
9.4.1 Operation of TPC Output Pins
TP
corresponding pins cannot be used for TPC output. The data transfer from NDR bits to DR bits
takes place, however, regardless of the usage of the pin.
Pin functions should be changed only under conditions in which the output trigger event will not
occur.
9.4.2 Note on Non-Overlapping Output
During non-overlapping operation, the transfer of NDR bit values to DR bits takes place as
follows.
1. NDR bits are always transferred to DR bits at compare match A.
2. At compare match B, NDR bits are transferred only if their value is 0. Bits are not transferred
Figure 9-9 illustrates the non-overlapping TPC output operation.
TPC output pin
0
to TP
if their value is 1.
15
are multiplexed with ITU pin functions. When ITU output is enabled, the
DDR
Q
Figure 9-9 Non-Overlapping TPC Output
Q
NDER
Q
DR
C
293
D
Compare match A
Compare match B
Q
NDR
D
Internal
data bus