HD643303x Hitachi, HD643303x Datasheet - Page 256
HD643303x
Manufacturer Part Number
HD643303x
Description
Hitachi Microcomputer
Manufacturer
Hitachi
Datasheet
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8.4.8 Buffering
Buffering operates differently depending on whether a general register is an output compare
register or an input capture register, with further differences in reset-synchronized PWM mode
and complementary PWM mode. Buffering is available only in channels 3 and 4. Buffering
operations under the conditions mentioned above are described next.
•
•
Input capture signal
General register used for output compare
The buffer register value is transferred to the general register at compare match. See
figure 8-46.
General register used for input capture
The TCNT value is transferred to the general register at input capture. The previous general
register value is transferred to the buffer register.
See figure 8-47.
BR
BR
Figure 8-46 Compare Match Buffering
Figure 8-47 Input Capture Buffering
Compare match signal
GR
241
GR
Comparator
TCNT
TCNT
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