20-101-1221 Rabbit Semiconductor, 20-101-1221 Datasheet - Page 47
20-101-1221
Manufacturer Part Number
20-101-1221
Description
RCM4400W (JAPAN TELEC CERTIFIED)
Manufacturer
Rabbit Semiconductor
Series
RabbitCore®r
Datasheet
1.20-101-1202.pdf
(126 pages)
Specifications of 20-101-1221
Frequency
2.4GHz
Modulation Or Protocol
802.11 b
Power - Output
16dBm
Voltage - Supply
3.3V
Current - Receiving
450mA
Current - Transmitting
450mA
Data Interface
Connector, 2 x 25 Header
Memory Size
512K Flash, 1MB SRAM
Antenna Connector
SMA
Operating Temperature
-20°C ~ 85°C
Package / Case
Module
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Applications
-
Sensitivity
-
Data Rate - Maximum
-
Other names
316-1147
- Current page: 47 of 126
- Download datasheet (2Mb)
4.3 Programming Cable
The programming cable is used to connect the programming port (header J2) of the
RCM4400W to a PC serial COM port. The programming cable converts the RS-232 volt-
age levels used by the PC serial port to the CMOS voltage levels used by the Rabbit 4000.
When the
connector on the programming cable is connected to the RCM4400W
PROG
programming port, programs can be downloaded and debugged over the serial interface.
The
connector of the programming cable may be used on header J2 of the
DIAG
RCM4400W with the RCM4400W operating in the Run Mode. This allows the program-
ming port to be used as a regular serial port.
4.3.1 Changing Between Program Mode and Run Mode
The RCM4400W is automatically in Program Mode when the
connector on the
PROG
programming cable is attached, and is automatically in Run Mode when no programming
cable is attached. When the Rabbit 4000 is reset, the operating mode is determined by the
status of the SMODE pins. When the programming cable’s
connector is attached,
PROG
the SMODE pins are pulled high, placing the Rabbit 4000 in the Program Mode. When the
programming cable’s
PROG
connector is not attached, the SMODE pins are pulled low,
causing the Rabbit 4000 to operate in the Run Mode.
Figure 10. Switching Between Program Mode and Run Mode
OEM User’s Manual
41
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