101-0497 Rabbit Semiconductor, 101-0497 Datasheet - Page 25

• Manufacturer Part Number: 101-0497
• Description: MODULAR RABBIT CORE OP6810
• Manufacturer: Rabbit Semiconductor

Specifications of 101-0497

• Rohs Status: RoHS non-compliant
• Module/board Type: Single Board Computer Module
• For Use With/related Products: OP6810
• Other names: Q1912584

3.3.3 Programming Port
The OP6800 programming port is accessed using header J1 on the OP6800’s RabbitCore
module or through the Ethernet jack. The programming port uses the Rabbit 2000’s Serial
Port A for communication. Dynamic C uses the programming port to download and debug
programs.
The programming port is also used for the following operations.
• Cold-boot the Rabbit 2000 on the OP6800 after a reset.
• Remotely download and debug a program over an Ethernet connection using the
• Fast copy designated portions of flash memory from one Rabbit-based board (the
Alternate Uses of the Programming Port
All three clocked Serial Port A signals are available as
• a synchronous serial port
• an asynchronous serial port, with the clock line usable as a general CMOS input
The programming port may also be used as a serial port via the
programming cable.
In addition to Serial Port A, the Rabbit 2000 startup-mode (SMODE0, SMODE1), status,
and reset pins are available on the programming port header.
The two startup mode pins determine what happens after a reset—the Rabbit 2000 is
either cold-booted or the program begins executing at address 0x0000.
The status pin is used by Dynamic C to determine whether a Rabbit microprocessor is
present. The status output has three different programmable functions:
1. It can be driven low on the first op code fetch cycle.
2. It can be driven low during an interrupt acknowledge cycle.
3. It can also serve as a general-purpose output.
The /RESET_IN pin is an external input that is used to reset the Rabbit 2000 and the
OP6800 onboard peripheral circuits.
Refer to the
User’s Manual
RabbitLink EG2110.
master) to another (the slave) using the Rabbit Cloning Board.
Rabbit 2000 Microprocessor User’s Manual
for more information.
DIAG
connector on the
21