Rev. 1.3
143
C8051F340/1/2/3/4/5/6/7/8/9/A/B/C/D
Figure 15.2. Port I/O Cell Block Diagram
G N D
P O R T -O U T E N A B L E
P O R T -O U T P U T
P U S H -P U L L
V D D
W E A K -P U L L U P
(W E A K )
P O R T P A D
A N A L O G IN P U T
A n a lo g S e le ct
P O R T -IN P U T
