Configuring the IM4 as a PC Card Module (Default)
10
IM4 Module Integration Guide
Configuring the IM4 as a PC Card Module (Default)
In PC Card mode, the IM4 interface looks like a standard 16C550 UART.
It appears as a serial port and you can use a communications program,
such as HyperTerminal, to communicate with it using the Basic Reader
Interface (BRI). For more information on the BRI, see the
Basic Reader
Interface (BRI) Programmer’s Reference Guide
(P/N 937-000-001).
All signals are 3.3 V logic levels (5 V tolerant inputs).
Low
High
Notes
Inputs
0 V to 0.8 V
2.4 V to 5.5 V
Input current is ±10 µA max
Outputs
0.4 V Max @ 8 mA
2.9 V min @ -8 mA
Note:
Pins with a # in the pin name indicate an active low signal.
Pins 7 (CE1#), 44 (IORD#), and 45 (IOWR#) determine if the IM4
operates in PC Card mode or in Serial mode. If the three signals are NOT
grounded, the IM4 operates in PC Card mode.
