ATMEGA128RFA1-ZUR Atmel, ATMEGA128RFA1-ZUR Datasheet - Page 363
ATMEGA128RFA1-ZUR
Manufacturer Part Number
ATMEGA128RFA1-ZUR
Description
IC AVR MCU 2.4GHZ XCEIVER 64QFN
Manufacturer
Atmel
Series
ATMEGAr
Datasheets
1.ATMEGA128-16AU.pdf
(385 pages)
2.ATAVR128RFA1-EK1.pdf
(13 pages)
3.ATAVR128RFA1-EK1.pdf
(555 pages)
Specifications of ATMEGA128RFA1-ZUR
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
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATMEGA128RFA1-ZUR
Manufacturer:
ON
Quantity:
56 000
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23.10.9 UCSR1B – USART1 Control and Status Register B
8266B-MCU Wireless-03/11
This bit is set if the next character in the receive buffer had a Parity Error when received
and the Parity Checking was enabled at that point (UPM11 = 1). This bit is valid until the
receive buffer (UDR1) is read. Always set this bit to zero when writing to UCSR1A.
• Bit 1 – U2X1 - Double the USART Transmission Speed
This bit only has effect for the asynchronous operation. Write this bit to zero when using
synchronous operation. Writing this bit to one will reduce the divisor of the baud rate
divider from 16 to 8 effectively doubling the transfer rate for asynchronous
communication.
• Bit 0 – MPCM1 - Multi-processor Communication Mode
This bit enables the Multi-processor Communication mode. When the MPCM1 bit is
written to one, all the incoming frames received by the USART Receiver that do not
contain address information will be ignored. The Transmitter is unaffected by the
MPCM1 setting. For more detailed information see section "Multi-processor
Communication Mode".
• Bit 7 – RXCIE1 - RX Complete Interrupt Enable
Writing this bit to one enables interrupt on the RXC1 Flag. A USART Receive Complete
interrupt will be generated only if the RXCIE1 bit is written to one, the Global Interrupt
Flag in SREG is written to one and the RXC1 bit in UCSR1A is set.
• Bit 6 – TXCIE1 - TX Complete Interrupt Enable
Writing this bit to one enables interrupt on the TXC1 Flag. A USART Transmit Complete
interrupt will be generated only if the TXCIE1 bit is written to one, the Global Interrupt
Flag in SREG is written to one and the TXC1 bit in UCSR1A is set.
• Bit 5 – UDRIE1 - USART Data Register Empty Interrupt Enable
Writing this bit to one enables interrupt on the UDRE1 Flag. A Data Register Empty
interrupt will be generated only if the UDRIE1 bit is written to one, the Global Interrupt
Flag in SREG is written to one and the UDRE1 bit in UCSR1A is set.
• Bit 4 – RXEN1 - Receiver Enable
Writing this bit to one enables the USART Receiver. The Receiver will override normal
port operation for the RxD1 pin when enabled. Disabling the Receiver will flush the
receive buffer invalidating the FE1, DOR1 and UPE1 Flags.
• Bit 3 – TXEN1 - Transmitter Enable
Writing this bit to one enables the USART Transmitter. The Transmitter will override
normal port operation for the TxD1 pin when enabled. The disabling of the Transmitter
(writing TXEN1 to zero) will not become effective until ongoing and pending
transmissions are completed, i.e., when the Transmit Shift Register and Transmit Buffer
Register do not contain data to be transmitted. When disabled, the Transmitter will no
longer override the TxD1 port.
• Bit 2 – UCSZ12 - Character Size
Bit
NA ($C9)
Read/Write
Initial Value
RXCIE1
RW
7
0
TXCIE1
RW
6
0
UDRIE1
RW
5
1
RXEN1
RW
4
0
TXEN1
RW
3
0
ATmega128RFA1
UCSZ12
RW
2
0
RXB81
R
1
0
TXB81
W
0
0
UCSR1B
363
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