20-101-1207 Rabbit Semiconductor, 20-101-1207 Datasheet - Page 98
20-101-1207
Manufacturer Part Number
20-101-1207
Description
RCM4510W FCC CERTIFIED
Manufacturer
Rabbit Semiconductor
Type
Transceiver, 802.15.4/ZigBeer
Datasheet
1.20-101-1207.pdf
(118 pages)
Specifications of 20-101-1207
Frequency
2.4GHz
Wireless Frequency
29.49 MHz
For Use With/related Products
RCM4510W
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
316-1144
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B.4.3 Analog Features
The Prototyping Board has typical support circuitry installed to complement the ADS7870
A/D converter chip, which is available on other RabbitCore modules based on the Rabbit
4000 microprocessor, but is not installed on the RCM4510W model.
the auxiliary I/O on the RCM4510W’s header J4 cannot be used with the Prototyping Board with-
out modifying the Prototyping Board.
B.4.4 Serial Communication
The Prototyping Board allows you to access the serial ports from the RCM4510W mod-
ule. Table B-3 summarizes the configuration options.
Serial Ports E and F may be used as serial ports, or the corresponding pins at header loca-
tion J2 may be used as parallel ports.
B.4.4.1 RS-232
RS-232 serial communication on header J4 on both Prototyping Boards is supported by an
RS-232 transceiver installed at U3. This transceiver provides the voltage output, slew rate,
and input voltage immunity required to meet the RS-232 serial communication protocol.
Basically, the chip translates the Rabbit 4000’s signals to RS-232 signal levels. Note that
the polarity is reversed in an RS-232 circuit so that a +3.3 V output becomes approxi-
mately -10 V and 0 V is output as +10 V. The RS-232 transceiver also provides the proper
line loading for reliable communication.
RS-232 can be used effectively at the RCM4510W module’s maximum baud rate for dis-
tances of up to 15 m.
92
Serial Port
A
D
B
C
E
F
Table B-3. Prototyping Board Serial Port Configurations
Header
J2, J4
J2, J4
J2
J2
J2
J2
Programming Port
XBee RF Module
Default Use
RS-232
RS-232
—
—
The analog inputs from
Alternate Use
RabbitCore RCM4500W
RS-232
RS-232
—
—
—
—
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