ATMEGA128RFA1-ZU Atmel, ATMEGA128RFA1-ZU Datasheet - Page 110

• 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

9.12.13 CCA_THRES – Transceiver CCA Threshold Setting Register
110
ATmega128RFA1
Table 9-43 CHANNEL Register Bits
This register sets the threshold level for the Energy Detection (ED) of the Clear Channel
Assessment (CCA).
• Bit 7:4 – CCA_CS_THRES3:0 - CS Threshold Level for CCA Measurement
These bits are reserved for internal use.
• Bit 3:0 – CCA_ED_THRES3:0 - ED Threshold Level for CCA Measurement
Bit
NA ($149)
Read/Write
Initial Value
Bit
NA ($149)
Read/Write
Initial Value
Bit
NA ($149)
Read/Write
Initial Value
Bit
NA ($149)
Read/Write
Initial Value
Register Bits
CHANNEL4:0
CCA_CS_THRES3
CCA_CS_THRES1
CCA_ED_THRES3
CCA_ED_THRES1
RW
RW
RW
RW
7
1
5
0
3
0
1
1
Value
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
Description
2405 MHz
2410 MHz
2415 MHz
2420 MHz
2425 MHz
2430 MHz
2435 MHz
2440 MHz
2445 MHz
2450 MHz
2455 MHz
2460 MHz
2465 MHz
2470 MHz
2475 MHz
2480 MHz
CCA_CS_THRES2
CCA_CS_THRES0
CCA_ED_THRES2
CCA_ED_THRES0
RW
RW
RW
RW
6
1
4
0
2
1
0
1
8266A-MCU Wireless-12/09
CCA_THRES
CCA_THRES
CCA_THRES
CCA_THRES