Datasheet

78K0/Ix2 CHAPTER 4 PORT FUNCTIONS
R01UH0010EJ0500 Rev.5.00 117
Feb 28, 2012
Figure 4-12. Block Diagram of P30
P30/TOH1/TI51/INTP1
WR
PU
RD
WR
PORT
WR PM
PU30
Output latch
(P30)
PM30
V DD
P-ch
PM3
PU3
P3
Alternate
function
Alternate
function
Selector
Internal bus
P3: Port register 3
PU3: Pull-up resistor option register 3
PM3: Port mode register 3
RD: Read signal
WR: Write signal