
CHAPTER 4 PORT FUNCTIONS
User’s Manual U15905EJ2V1UD
140
Figure 4-21. Block Diagram of P98, P910, and P913
Internal
bus
WRPMC
RD
Address
A8, A10, A13 output
RXD1, SI2, SI3 input
Output buffer
off signal
WRPORT
P98/A8/RXD1,
P910/A10/SI2,
P913/A13/SI3
PMC9n
Output latch
(P9n)
Selector
WRPU
PU9n
WRPM
PM9n
WRPFC
PFC9n
PMC9
P9
PU9
PM9
PFC9
EVDD
P-ch
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
PF9:
Port function register 9
PU9:
Pull-up resistor option register 9
Output buffer off signal: Signal that is active in the IDLE/STOP mode or during bus hold
2. n = 8, 10, 13