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11.4 Usage Notes
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11.4.1 Operation of TPC Output Pins
TP
to TP
are multiplexed with ITU, DMAC, address bus, and other pin functions. When ITU,
0
15
DMAC, or address output is enabled, the 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.
11.4.2 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
if their value is 1.
Figure 11-9 illustrates the non-overlapping TPC output operation.
TPC output pin
DDR
NDER
Q
Q
C
Q
DR
Figure 11-9 Non-Overlapping TPC Output
Compare match A
Compare match B
D
Q
NDR
419
Internal
D
data bus
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