20-101-0404 Rabbit Semiconductor, 20-101-0404 Datasheet - Page 34

• Manufacturer Part Number: 20-101-0404
• Description: MODULE RABBITCORE RCM2000
• Manufacturer: Rabbit Semiconductor

Specifications of 20-101-0404

• Module/board Type: MPU Core Module
• Product: Microcontroller Modules
• Core Processor: Rabbit 2000
• Clock Speed: 25.8 MHz
• Interface Type: Ethernet, Serial
• Flash: 256 KB
• Timers: 5 x 8 bit, 2 x 10 bit
• Operating Supply Voltage: 4.75 V to 5.25 V
• Board Size: 48.3 mm x 58.4 mm x 14 mm
• Core: RCM2000
• Processor Series: RCM2000
• Cpu Core: Rabbit 2000
• For Use With/related Products: RCM2000
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 316-1083

4.4 Serial Programming Cable
The programming cable is used to connect the RCM2000’s programming port 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 RCM2000’s
PROG
programming header, programs can be downloaded and debugged over the serial interface.
The
DIAG
connector of the programming cable may be used on the RCM2000’s program-
ming header with the RCM2000 operating in the Run Mode. This allows the programming
port to be used as a regular serial port.
4.4.1 Changing Between Program Mode and Run Mode
The RCM2000 is automatically in Program Mode when the
PROG
connector on the
programming cable is attached to the RCM2000, 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
PROG
connector is attached, the SMODE pins are pulled high, placing the Rabbit 2000 in the
Program Mode. When the programming cable’s
connector is not attached, the
PROG
SMODE pins are pulled low, causing the Rabbit 2000 to operate in the Run Mode.
Figure 7. RCM2000 Program Mode and Run Mode Setup
A program “runs” in either mode, but can only be downloaded and debugged when the
RCM2000 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.
30
RabbitCore RCM2000