Datasheet

78K0/Ix2 CHAPTER 4 PORT FUNCTIONS
R01UH0010EJ0500 Rev.5.00 120
Feb 28, 2012
Figure 4-15. Block Diagram of P33
P33/TOX10
WR
PU
RD
WR
PORT
WR
PM
PU33
Output latch
(P33)
PM33
V
DD
P-ch
PU3
PM3
P3
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