Datasheet

78K0/Kx2-L CHAPTER 4 PORT FUNCTIONS
R01UH0028EJ0400 Rev.4.00 148
Sep 27, 2010
Figure 4-15. Block Diagram of P30 (78K0/KY2-L, 78K0/KA2-L), P33, P34
P30/TOH1/TI51/INTP1
(78K0/KY2-L, 78K0/KA2-L),
P33/INTP4/TI51/TO51,
P34/INTP4(/TOH1)(/TI51)
WR
PU
RD
WR
PORT
WR PM
PU30, PU33,
PU34
PM30, PM33,
PM34
Alternate
function
Output latch
(P30, P33, P34)
Alternate
function
P-ch
Selector
Internal bus
PU3
PM3
P3
V
DD
P3: Port register 3
PU3: Pull-up resistor option register 3
PM3: Port mode register 3
RD: Read signal
WR××: Write signal