User's Manual
Table Of Contents
- Part Number
- Overview
- AC4490 Specifications
- Specifications
- Configuring the AC4490
- EEPROM Parameters
- EEPROM Configuration Commands
- On-the-Fly Control Command Reference
- Status Request
- Change Channel without Forced Acquisition Sync
- Change Channel with Forced Acquisition Sync
- Server/Client Command
- Sync to Channel Command
- Power-Down Command
- Power-Down Wake-Up Command
- Broadcast Mode
- Write Destination Address
- Read Destination Address
- Read Digital Inputs
- Read ADC
- Report Last Valid RSSI
- Write Digital Outputs
- Write DAC
- Set Max Power
- Transmit Buffer Empty
- Theory of Operation
- Hardware interface
- GIn (Generic Inputs 0 and 1) (pins 4 and 14 respectively) and GOn (Generic Outputs 0 and 1) (pins 1 and 9 respectively)
- TXD (Transmit Data) and RXD (Receive Data) (pins 2 and 3 respectively)
- Hop Frame (pin 6)
- CTS Handshaking (pin 7)
- RTS Handshaking (pin 8)
- 9600 Baud/Packet Frame (pin 12)
- RSSI (pin 13)
- UP_Reset (pin 15)
- Command/Data (pin 17)
- AD In and AD Out (pins 18 and 19 respectively)
- In Range (pin 20)
- Software Parameters
- Hardware interface
- Application Examples
- Dimensions
- Ordering Information
AC4490 Specifications
AC4490 SpecificationsAC4490 Specifications
AC4490 Specifications
2/18/03
2/18/032/18/03
2/18/03 15
1515
15
Parameter
ParameterParameter
Parameter
EEPROM
EEPROMEEPROM
EEPROM
Address
AddressAddress
Address
Length
LengthLength
Length
(Bytes)
(Bytes)(Bytes)
(Bytes) Range
RangeRange
Range Default
DefaultDefault
Default Description
DescriptionDescription
Description
Frequency
Offset
46H 1 00 – FFh 00h
Transmit
Retries 4CH 1 01 – FFh 10h
Broadcast
Attempts 4DH 1 01 – FFh 04h
API Control 56H 1 01000011b
(43h)
Settings are:
Bit 7 – AeroComm Use Only
AeroComm Use OnlyAeroComm Use Only
AeroComm Use Only
Bit 6 – AeroComm Use Only
AeroComm Use OnlyAeroComm Use Only
AeroComm Use Only
Bit 5 – Unicast Only
0 = Receive Unicast and Broadcast
packets
1 = Only receive Unicast packets
Bit 4 – Auto Destination
0 = Use Destination Address
1 = Set Destination to Server
Bit 3 – AeroComm Use Only
AeroComm Use OnlyAeroComm Use Only
AeroComm Use Only
Bit 2 – RTS Enable
0 = RTS Ignored
1 = Transceiver obeys RTS
Bit 1 – Duplex Mode
0 = Half Duplex
1 = Full Duplex
Bit 0 – Auto Config
0 = Use EEPROM values
1 = Auto Configure Values
Interface
Timeout 58H 1 02 – FFh 04h
Sync Channel 5AH 1 00 – 3Fh 01h
RF Packet Size 5BH 1 01 – 40h 46h
CTS On 5CH 1 01 – FFh D2h
CTS On
Hysteresis 5DH 1 01 – FFh ACh
Max Power 63H 1 00 – FFh 60h
Destination ID 70H 6 6 Bytes
System ID 76H 1 00 – FFh 01h
MAC ID 80H 6 6 Bytes Unique IEEE MAC Address
4.2
4.24.2
4.2
EEPROM C
EEPROM CEEPROM C
EEPROM C
ONFIGURATION
ONFIGURATION ONFIGURATION
ONFIGURATION
C
CC
C
OMMANDS
OMMANDSOMMANDS
OMMANDS
The configuration set allows the Host to modify the operation of the transceiver. If the Command/Data
pin (Pin 17) is pulled logic Low, a transceiver will interpret incoming Host data as Command Data. The
Host can then read and write parameters using the various configuration commands listed below. To
exit Configuration Mode, the Host must perform a hardware or power-on reset or issue an Exit
Command Mode command to the transceiver.