20-101-0709 Rabbit Semiconductor, 20-101-0709 Datasheet - Page 31

• Manufacturer Part Number: 20-101-0709
• Description: INTERFACE GRAPHIC DISPLAY OP6700
• Manufacturer: Rabbit Semiconductor

Specifications of 20-101-0709

• Module/board Type: Single Board Computer Module
• For Use With/related Products: OP6700
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 20-101-709; 20-101-709

3.3 Programming Cable
The programming cable is used to connect the Intellicom tprogramming port o a PC serial
COM port. The programming cable converts the RS-232 voltage levels used by the PC
serial port to the voltage levels used by the Rabbit 2000.
When the
connector on the programming cable is connected to the Intellicom
PROG
programming port, programs can be downloaded and debugged over the serial interface
between the PC and the Rabbit 2000.
The
connector of the programming cable may be used on header J4 of the Intellicom
DIAG
with the Intellicom operating in the Run Mode. This allows the programming port to be
used as a regular serial port.
3.3.1 Changing Between Program Mode and Run Mode
The Intellicom is automatically in Program Mode when the
connector on the pro-
PROG
gramming cable is attached, and is automatically in Run Mode when no programming
cable is attached. When the Rabbit 2000 is reset, the operating mode is determined by the
status of the SMODE pins. When the programming cable’s
connector is attached,
PROG
the SMODE pins are pulled high, placing the Rabbit 2000 in the Program Mode. When the
programming cable’s
PROG
connector is not attached, the SMODE pins are pulled low,
causing the Rabbit 2000 to operate in the Run Mode.
Figure 11. Intellicom Program Mode and Run Mode Set-Up
A program “runs” in either mode, but can only be downloaded and debugged when the
OP6800 is in the Program Mode.
Refer to the
for more information on the pro-
Rabbit 2000 Microprocessor User’s Manual
gramming port and the programming cable.
User’s Manual
27