POD–51EH–C541U–12
• © Copyright ICE Technology
8
Port0 and Port2 Pins
—The pod emulates these 16 port pins, used as the address/data bus and
as port pins. These pins have slightly different
AC
and
DC
characteristics from the Port0 and
Port2 pins of the controller. These pins sink up to 12 mA and source up to 4 mA, while main-
taining valid
TTL
output logic levels. Port2 pins also have pull-up resistors of 22K, which might
be different from the controller internal pull-ups.
Connecting the Pod to a Target System
1.
Make sure the power is turned off in both the host
PC
and the target system.
2.
Connect the black
EZ
-hook from the pod to the target
GND
.
3.
Turn on the power to the
PC
first, and then turn on the power to the target.
4.
When turning the power off, turn off the target power first, and then turn off the
PC
power.
