ATMEGA128RFA1-ZU Atmel, ATMEGA128RFA1-ZU Datasheet - Page 26

• 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

8.6 General Purpose I/O Registers
8.6.1 GPIOR0 – General Purpose IO Register 0
8.6.2 GPIOR1 – General Purpose IO Register 1
8.6.3 GPIOR2 – General Purpose I/O Register 2
8.7 Other Port Registers
26
ATmega128RFA1
The ATmega128RFA1 contains three General Purpose I/O Registers. These registers
can be used for storing any information, and they are particularly useful for storing
global variables and Status Flags. General Purpose I/O Registers within the address
range 0x00 – 0x1F are directly bit-accessible using the SBI, CBI, SBIS, and SBIC
instructions.
The three General Purpose I/O Registers can be used for storing any information.
• Bit 7:0 – GPIOR07:00 - General Purpose I/O Register 0 Value
The three General Purpose I/O Registers can be used for storing any information.
• Bit 7:0 – GPIOR17:10 - General Purpose I/O Register 1 Value
The three General Purpose I/O Registers can be used for storing any information.
• Bit 7:0 – GPIOR27:20 - General Purpose I/O Register 2 Value
The inherited control registers of missing ports located in the I/O space are kept in the
ATmega128RFA1. They can be used as general purpose I/O registers for storing any
information. Registers placed in the address range 0x00 – 0x1F are directly bit-
accessible using the SBI, CBI, SBIS and SBIC instructions.
Bit
$1E ($3E)
Read/Write
Initial Value
Bit
$2A ($4A)
Read/Write
Initial Value
Bit
$2B ($4B)
Read/Write
Initial Value
RW
RW
RW
7
0
7
0
7
0
RW
RW
RW
6
0
6
0
6
0
RW
RW
RW
5
0
5
0
5
0
RW
RW
RW
GPIOR07:00
GPIOR17:10
GPIOR27:20
4
0
4
0
4
0
RW
RW
RW
3
0
3
0
3
0
RW
RW
RW
2
0
2
0
2
0
RW
RW
RW
1
0
1
0
1
0
RW
RW
RW
0
0
0
0
0
0
8266A-MCU Wireless-12/09
GPIOR0
GPIOR1
GPIOR2