CHAPTER 4 PORT FUNCTIONS
User鈥檚 Manual U15905EJ2V1UD
119
Figure 4-12. Block Diagram of P41
Internal
bus
WRPMC
RD
Address
SO0 output
SDA output
SDA input
WRPORT
P41/SO0/
SDA
PMC41
WRPFC
PFC41
Selector
WRPU
PU41
WRPM
PM41
Output latch
(P41)
WRPF
PF41
PMC4
PFC4
PU4
PM4
P4
PF4
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
P4:
Port register 4
PM4:
Port mode register 4
PMC4: Port mode control register 4
PFC4: Port function control register 4
PF4:
Port function register 4
PU4:
Pull-up resistor option register 4