
CHAPTER 4 PORT FUNCTIONS
User’s Manual U15905EJ2V1UD
105
Figure 4-7. Block Diagram of P22
Internal
bus
WRPMC
RD
Address
SCK4 output
SCK4 input
SCK4 output
enable signal
WRPORT
P22/SCK4
PMC22
Selector
WRPU
PU22
WRPM
PM22
Output latch
(P22)
WRPF
PF22
PMC2
PU2
PM2
P2
PF2
EVDD
P-ch
EVDD
EVSS
P-ch
N-ch
Caution
This pin does not have hysteresis characteristics in the port mode.
It has hysteresis characteristics only when an input-pin alternate function is used.
Remark
P2:
Port register 2
PM2:
Port mode register 2
PMC2: Port mode control register 2
PF2:
Port function register 2
PU2:
Pull-up resistor option register 2