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CHAPTER 4 PORT FUNCTIONS
User’s Manual U19780EJ2V0UD
90
Figure 4-5. Block Diagram of P12 and P13
WR
PU
RD
WR
PORT
WR
PM
PU12, PU13
PM12, PM13
V
DD
P-ch
PM1
PU1
P1
P12/TOH0/INTP7/TI000
Note
,
P13/TOH1/INTP6/TI010/TO00
Note
Internal bus
Output latch
(P12, P13)
Alternate
function
Alternate
function
Selector
P1:
Port register 1
PU1:
Pull-up resistor option register 1
PM1:
Port mode register 1
RD: Read
signal
WR
××
: Write
signal
Note
78K0/KB2-A: P12/TOH0/INTP7/TI000, P13/TOH1/INTP6/TI010/TO00
78K0/KC2-A: P12/TOH0/INTP7, P13/TOH1/INTP6