ATMEGA128RFA1-ZU Atmel, ATMEGA128RFA1-ZU Datasheet - Page 240

• 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

240
ATmega128RFA1
Table 17-6 COM0A Register Bits
• Bit 5:4 – COM0B1:0 - Compare Match Output B Mode
These bits control the Output Compare pin (OC0B) behavior. If one or both of the
COM0B1:0 bits are set, the OC0B output overrides the normal port functionality of the
I/O pin it is connected to. However, note that the Data Direction Register (DDR) bit
corresponding to the OC0B pin must be set in order to enable the output driver. When
OC0B is connected to the pin, the function of the COM0B1:0 bits depends on the
WGM02:0 bit setting. The following shows the COM0B1:0 bit functionality when the
WGM02:0 bits are set to a normal or CTC mode (non-PWM). For the functionality in
other modes refer to section "Operating Modes".
Table 17-7 COM0B Register Bits
• Bit 3:2 – Res1:0 - Reserved Bit
This bit is reserved for future use. A read access always will return zero. A write access
does not modify the content.
• Bit 1:0 – WGM01:00 - Waveform Generation Mode
Combined with the WGM02 bit found in the TCCR0B Register, these bits control the
counting sequence of the counter, the source for maximum (TOP) counter value, and
what type of waveform generation to be used according to the following table. Modes of
operation supported by the Timer/Counter0 unit are: Normal mode (counter), Clear
Timer on Compare Match (CTC) mode, and two types of Pulse Width Modulation
(PWM) modes (see section "Modes of Operation" for details).
Table 17-8 WGM0 Register Bits
Register Bits
COM0A1:0
Register Bits
COM0B1:0
Register Bits
WGM01:00
Value
Value
Value
0x0
0x1
0x2
0x3
0x4
0x5
0x6
0x7
0
1
2
3
0
1
2
3
Description
Normal port operation, OC0A disconnected
Toggle OC0A on Compare Match
Clear OC0A on Compare Match
Set OC0A on Compare Match
Description
Normal port operation, OC0B disconnected
Toggle OC0B on Compare Match
Clear OC0B on Compare Match
Set OC0B on Compare Match
Description
Normal mode of operation
PWM, phase correct, TOP=0xFF
CTC, TOP = OCRA
Fast PWM, TOP=0xFF
Reserved
PWM, Phase correct, TOP = OCRA
Reserved
Fast PWM, TOP=OCRA
8266B-MCU Wireless-03/11