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WR
PU
WR
PFC
PFC9
PFC9n
WR
PMC
PMC9
PMC9n
Output buffer
WR
PM
PM9n
A4 to A9 output
WR
PORT
TO2 to TO5, TXD1 output
RD
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 = 4 to 7, 9
CHAPTER 4 PORT FUNCTIONS
Figure 4-20. Block Diagram of P94 to P97 and P99
PU9
PU9n
OFF signal
PM9
P9
P9n
Address
Preliminary User's Manual U15905EJ1V0UD
EV
DD
P-ch
P94/A4/TO2,
P95/A5/TO3,
P96/A6/TO4,
P97/A7/TO5,
P99/A9/TXD1
143
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