ATMEGA128RFA1-ZU Atmel, ATMEGA128RFA1-ZU Datasheet - Page 107

• Manufacturer Part Number: ATMEGA128RFA1-ZU
• Description: IC AVR MCU 2.4GHZ XCEIVER 64QFN
• Manufacturer: Atmel
• Series: ATMEGAr

Specifications of ATMEGA128RFA1-ZU

• Frequency: 2.4GHz
• Data Rate - Maximum: 2Mbps
• Modulation Or Protocol: 802.15.4 Zigbee
• Applications: General Purpose
• Power - Output: 3.5dBm
• Sensitivity: -100dBm
• Voltage - Supply: 1.8 V ~ 3.6 V
• Current - Receiving: 12.5mA
• Current - Transmitting: 14.5mA
• Data Interface: PCB, Surface Mount
• Memory Size: 128kB Flash, 4kB EEPROM, 16kB RAM
• Antenna Connector: PCB, Surface Mount
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-VFQFN, Exposed Pad
• Rf Ic Case Style: QFN
• No. Of Pins: 64
• Supply Voltage Range: 1.8V To 3.6V
• Operating Temperature Range: -40°C To +85°C
• Svhc: No SVHC (15-Dec-2010)
• Rohs Compliant: Yes
• Processor Series: ATMEGA128x
• Core: AVR8
• Data Bus Width: 8 bit
• Program Memory Type: Flash
• Program Memory Size: 128 KB
• Data Ram Size: 16 KB
• Interface Type: JTAG
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 38
• Number Of Timers: 6
• Operating Supply Voltage: 1.8 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVR128RFA1-EK1
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

9.12.10 PHY_RSSI – Receiver Signal Strength Indicator Register
8266A-MCU Wireless-12/09
Table 9-37 PA_LT Register Bits
• Bit 3:0 – TX_PWR3:0 - Transmit Power Setting
These register bits determine the TX output power of the radio transceiver.
Table 9-38 TX_PWR Register Bits
The PHY_RSSI register is a multi purpose register that indicates FCS validity, provides
random numbers and shows the current RSSI value.
• Bit 7 – RX_CRC_VALID - Received Frame CRC Status
Reading this register bit indicates whether the last received frame has a valid FCS or
not. The register bit is updated when issuing a TRX24_RX_END interrupt and remains
Bit
NA ($146)
Read/Write
Initial Value
Bit
NA ($146)
Read/Write
Initial Value
Register Bits
PA_LT1:0
Register Bits
TX_PWR3:0
RX_CRC_VALID
RSSI3
R
R
7
0
3
0
RND_VALUE1
RSSI2
R
R
6
0
2
0
Value
Value
10
11
12
13
14
15
0
1
2
3
0
1
2
3
4
5
6
7
8
9
RND_VALUE0
RSSI1
Description
2 µs
4 µs
6 µs
8 µs
Description
3.0 dBm
2.8 dBm
2.3 dBm
1.8 dBm
1.3 dBm
0.7 dBm
0.0 dBm
-12 dBm
-17 dBm
-1 dBm
-2 dBm
-3 dBm
-4 dBm
-5 dBm
-7 dBm
-9 dBm
R
R
5
0
1
0
ATmega128RFA1
RSSI4
RSSI0
R
R
4
0
0
0
PHY_RSSI
PHY_RSSI
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