CHAPTER 4 PORT FUNCTIONS
User’s Manual U15905EJ2V1UD
138
Figure 4-19. Block Diagram of P92 and P93
Internal
bus
WRPMC
RD
Address
A2, A3 output
WRPORT
P92/A2/INTP5,
P93/A3/INTP6
PMC9n
WRPFC
PFC9n
Selector
Output buffer
off signal
Selector
WRPU
PU9n
WRPM
PM9n
Output latch
(P9n)
WRINTF
INTF9n
WRINTR
INTR9n
PMC9
PFC9
PU9
PM9
P9
INTF9
INTR9
EVDD
P-ch
INTP5, INTP6 input
Noise elimination,
edge detection
Caution
These pins do not have hysteresis characteristics in the port mode.
They have hysteresis characteristics only when an input-pin alternate function is used.
Remarks 1. P9:
Port register 9
PM9:
Port mode register 9
PMC9: Port mode control register 9
PFC9: Port function control register 9
PU9:
Pull-up resistor option register 9
INTR9: External interrupt rising edge specification register 9
INTF9: External interrupt falling edge specification register 9
Output buffer off signal: Signal that is active in the IDLE/STOP mode or during bus hold
2. n = 2 or 3
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