101-0392 Rabbit Semiconductor, 101-0392 Datasheet - Page 37

• Manufacturer Part Number: 101-0392
• Description: CARD A/D 0-10V SR9300 SMARTSTAR
• Manufacturer: Rabbit Semiconductor

Specifications of 101-0392

• Accessory Type: Smart Star A/D Card
• For Use With/related Products: SR9300
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

3.3 Programming Cable
The programming cable is used to connect the programming port of the Smart Star CPU
Card to a PC serial COM port. The programming cable converts the RS-232 voltage levels
used by the PC serial port to the TTL voltage levels used by the Rabbit 2000.
When the
connector on the programming cable is connected to the CPU Card’s
PROG
programming header, programs can be downloaded and debugged over the serial interface.
The
connector of the programming cable may be used on the CPU Card’s program-
DIAG
ming header with the Smart Star 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 Smart Star is automatically in Program Mode when the
connector on the pro-
PROG
gramming cable is attached to the CPU Card, and is automatically in Run Mode when no
programming cable is attached. When the Rabbit 2000 is reset, the operating mode is deter-
mined by the status of the SMODE pins. When the programming cable’s
PROG
connector
is attached, 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 15. Smart Star Program Mode and Run Mode Set-Up
A program “runs” in either mode, but can only be downloaded and debugged when the
Smart Star 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
37