20-101-1306 Rabbit Semiconductor, 20-101-1306 Datasheet - Page 37
20-101-1306
Manufacturer Part Number
20-101-1306
Description
CORE MODULE RCM5750
Manufacturer
Rabbit Semiconductor
Type
Serial to Ethernetr
Datasheet
1.20-101-1306.pdf
(119 pages)
Specifications of 20-101-1306
Module/board Type
MPU Core Module
Number Of I/os
32
Ethernet Connection Type
10/100 Base-T
Memory Type
Flash
Operating Voltage
3.3 V
Operating Current
70 mA
Operating Temperature Range
- 40 C to + 85 C
Board Size
30 mm x 51 mm x 3 mm
Product
Modules
For Use With/related Products
RCM5750
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
316-1183
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4.3 Programming Modes
The USB cable is used to connect the programming port of the RCM5700/RCM6700 to a PC
USB port via the Interface Board.
Whenever the MiniCore is reset, the operating mode is determined by the state of the SMODE
pins. The MiniCore is automatically in Program Mode when the SMODE pins, which are tied
together, are pulled up to +3.3 V. This happens when the MiniCore is installed on the Interface
Board, and pins 1–2 on header JP1 on the Interface Board are jumpered. When the SMODE pins
are pulled low by removing the jumpers from pins 1–2 on header JP1 on the Interface Board, the
Rabbit 5000/6000 will operate in the Run Mode once the MiniCore is reset.
Figure 4-12. Switching Between Program Mode and Run Mode
When you use the USB cable supplied with the Standard Development Kit while the MiniCore is
operating in the Run Mode, the MiniCore will reboot once approximately 2 seconds after its ini-
tial startup. To avoid this reboot, you will have to use the AC adapter supplied with the Deluxe
Development Kit, your own 5 V power supply, or you will need a special USB cable that has a
separate “power only” connection option to supply power via the Interface Board to operate the
MiniCore in the Run Mode.
A program “runs” in either mode, but can only be downloaded and debugged when the MiniCore
is in the Program Mode.
Refer to the Rabbit 5000 Microprocessor User’s Manual or Rabbit 6000 Microprocessor User's
Manual for more information on the programming port.
rabbit.com
MiniCore RCM5700/RCM6700 User’s Manual
37
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