Intel386™ EX EMBEDDED MICROPROCESSOR USER’S MANUAL
16-2

Figure 16-1. I/O Port Block Diagram

16.1.1 Port FunctionalityThe function of a bi-directional port pin is controlled by the state of the Port Control Latch (Pn-LTC). This is shown in Figure 16-2.
I
n
t
e
r
n
a
l
B
u
s
1
0
A2393-01
P
n
DIR.
x
P
n
LTC.
x
P
n
PIN.
x
Internal Peripherals
P
n
CFG.
x
P
n
.
x