20-101-1221 Rabbit Semiconductor, 20-101-1221 Datasheet - Page 46

• Manufacturer Part Number: 20-101-1221
• Description: RCM4400W (JAPAN TELEC CERTIFIED)
• Manufacturer: Rabbit Semiconductor
• Series: RabbitCore®r

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

There are two LEDs close to the RP-SMA antenna connector at J3, a green LED at DS1
(
(
An RG316 coaxial cable may be used to extend the antenna up to 30 cm (1 ft). This coaxial
cable has an impedance of 50 Ω and experiences 1.65 dB/m signal loss at 2.4 GHz.
4.2.3 Programming Port
The RCM4400W is programmed via the 10-pin header labeled J2. The programming port
uses the Rabbit 4000’s Serial Port A for communication. Dynamic C uses the programming
port to download and debug programs.
Serial Port A is also used for the following operations.
• Cold-boot the Rabbit 4000 on the RCM4400W after a reset.
• Fast copy designated portions of flash memory from one Rabbit-based board (the
Alternate Uses of the Programming Port
All three Serial Port A signals are available as
• a synchronous serial port
• an asynchronous serial port, with the clock line usable as a general CMOS I/O pin
The programming port may also be used as a serial port via the
programming cable.
In addition to Serial Port A, the Rabbit 4000 startup-mode (SMODE0, SMODE1),
STATUS, and reset pins are available on the programming port.
The two startup-mode pins determine what happens after a reset—the Rabbit 4000 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 once a program has been downloaded and
The reset pin is an external input that is used to reset the Rabbit 4000.
Refer to the
40
LINK
ACT
master) to another (the slave) using the Rabbit Cloning Board.
is running.
) to indicate activity.
) to indicate association with the Wi-Fi access point, and a yellow LED at DS2
Rabbit 4000 Microprocessor User’s Manual
for more information.
DIAG
RabbitCore RCM4400W
connector on the