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EV80C196KB Microcontroller Evaluation Board User's Manual -90
INTRODUCTION
The EV80C196KB is a next-generation version of the EV80C196KA. The major
changes are the use of a standard memory expansion bus compatible with the
EV80C51 FB and EV80C186 boards, and the removal of the card edge bus. Also,
the HOLD/HLDA feature of the 8OC196KB is supported. The EV80C196KB is de-
signed to be a software evaluation tool for the ROMless 8OC196KB 16-bit microcon-
troller. As such, ports 3 and 4 are not available for use as I/O ports unless offboard
latches/buffers and decoding logic are used. All unreserved functions of the
80C196KB are available to you except for the Non-Maskable Interrupt (NMI), the
TRAP instruction, and 512 bytes of address space. The Chip Configuration Byte is
also used by the monitor, but most of its functions are provided by external logic.
GETTING STARTED WITH THE EV80C396KB
Powering up the Board
Power (+5, +/-12 Volts) must be connected to JP4 as shown on the board's silk-
screen next to JP4 and in figure 10. Included with the board is a packet containing a
Molex connector and crimp terminals for your convenience.
Power supply requirements for the EV80C196KB board are as follows:
+ 5 VDC +I- 5 % @ 280 mA
(150 mA if LED's are disabled by
removing jumper shunt El 6)
+12VDC+/-20%@
15mA
-12VDC+/-20%@
15mA
Upon power-up (or after a reset) the board goes through initializations and a shift-
ing-pattern is displayed on the Port 1 LEDs when initialization has completed prop-
erly.
Connecting to your PC
Once you have applied power to the board, you need to connect Pl to a PC serial
port. Pl is configured to interface pin-to-pin with a standard nine-pin AT@)-type
serial connector (see figure 5 for pinout). Make certain that you use a cable provid-
ing all nine signals, as they are all needed for proper operation of the host interface.
When you have connected the cable, you may observe that the 8OC196KB is held in
reset, and all the LEDs turn on. This is because one of the host signals is used to
reset the part, and the signal'is often in a reset condition prior to invoking the host
software on your PC.
Note: if you have a 25pin serial port it will be necessary to make a 2%pin to 9-
pin adaptor (see figure 11 for details).
Starting the Host Software
After the you have made both connections to the board, you can invoke the host
interface. Install the disk in drive A of your system. At the DOS prompt type
"A:ECM96"eCR>. Your PC should eventually display the iECM-96 monitor screen.
If you have problems please refer to the sub-section "Initiating and Terminating
iECM-96" in the "USER INTERFACE" section of this manual. For further details on
using the monitor, refer to the "USER INTERFACE" section.
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