101-0954 Rabbit Semiconductor, 101-0954 Datasheet - Page 36

• Manufacturer Part Number: 101-0954
• Description: KIT DEV RABBIT RCM3360/3370 INTL
• Manufacturer: Rabbit Semiconductor
• Series: RabbitCore 3000r

Specifications of 101-0954

• For Use With/related Products: RCM3360
• Lead Free Status / RoHS Status: Vendor undefined / Vendor undefined

4.3 Programming Cable
The programming cable is used to connect the programming port of the RCM3360/
RCM3370 to a PC serial COM port. The programming cable converts the RS-232 voltage
levels used by the PC serial port to the CMOS voltage levels used by the Rabbit 3000.
When the
connector on the programming cable is connected to the RCM3360/
PROG
RCM3370 programming port, programs can be downloaded and debugged over the serial
interface.
The
connector of the programming cable may be used on header J1 of the RCM3360/
DIAG
RCM3370 with the RCM3360/RCM3370 operating in the Run Mode. This allows the pro-
gramming port to be used as a regular serial port.
4.3.1 Changing Between Program Mode and Run Mode
The RCM3360/RCM3370 is automatically in Program Mode when the
connector
PROG
on the programming cable is attached, and is automatically in Run Mode when no pro-
gramming cable is attached. When the Rabbit 3000 is reset, the operating mode is deter-
mined by the status of the SMODE pins. When the programming cable’s
connector
PROG
is attached, the SMODE pins are pulled high, placing the Rabbit 3000 in the Program
Mode. When the programming cable’s
PROG
connector is not attached, the SMODE pins
are pulled low, causing the Rabbit 3000 to operate in the Run Mode.
Figure 8. Switching Between Program Mode and Run Mode
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RabbitCore RCM3360/RCM3370