ATMEGA128RFA1-ZU Atmel, ATMEGA128RFA1-ZU Datasheet - Page 27

• 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
8266B-MCU Wireless-03/11
0x20 must be added to these addresses. The ATmega128RFA1 is a complex
microcontroller with more peripheral units than can be supported within the 64 location
reserved in Opcode for the IN and OUT instructions. For the Extended I/O space from
0x60 – 0x1FF in SRAM, only the ST/STS/STD and LD/LDS/LDD instructions can be
used.
For compatibility with future devices, reserved bits may not be modified. Reserved
registers and I/O memory addresses should never be written.
Some of the Status Flags are cleared by writing a logical one to them. Note that, unlike
most other AVRs, the CBI and SBI instructions will only operate on the specified bit,
and can therefore be used on registers containing such Status Flags. The CBI and SBI
instructions work with registers 0x00 to 0x1F only.
The control registers of I/O and peripherals are explained in later sections.
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
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
ATmega128RFA1
RW
RW
RW
1
0
1
0
1
0
RW
RW
RW
0
0
0
0
0
0
GPIOR0
GPIOR1
GPIOR2
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