ATMEGA128RFA1-ZU Atmel, ATMEGA128RFA1-ZU Datasheet - Page 212
ATMEGA128RFA1-ZU
Manufacturer Part Number
ATMEGA128RFA1-ZU
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)
4.ATMEGA128RFA1-ZU.pdf
(524 pages)
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATMEGA128RFA1-ZU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Company:
Part Number:
ATMEGA128RFA1-ZUR
Manufacturer:
ON
Quantity:
56 000
- ATMEGA128-16AU PDF datasheet
- ATAVR128RFA1-EK1 PDF datasheet #2
- ATAVR128RFA1-EK1 PDF datasheet #3
- ATMEGA128RFA1-ZU PDF datasheet #4
- Current page: 212 of 385
- Download datasheet (8Mb)
Transmission
Modes
Master Transmitter
Mode
212
ATmega128
The TWI can operate in one of four major modes. These are named Master Transmitter (MT),
Master Receiver (MR), Slave Transmitter (ST) and Slave Receiver (SR). Several of these
modes can be used in the same application. As an example, the TWI can use MT mode to write
data into a TWI EEPROM, MR mode to read the data back from the EEPROM. If other masters
are present in the system, some of these might transmit data to the TWI, and then SR mode
would be used. It is the application software that decides which modes are legal.
The following sections describe each of these modes. Possible status codes are described
along with figures detailing data transmission in each of the modes. These figures contain the
following abbreviations:
S: START condition
Rs: REPEATED START condition
R: Read bit (high level at SDA)
W: Write bit (low level at SDA)
A: Acknowledge bit (low level at SDA)
A: Not acknowledge bit (high level at SDA)
Data: 8-bit data byte
P: STOP condition
SLA: Slave Address
In
in the circles show the status code held in TWSR, with the prescaler bits masked to zero. At
these points, actions must be taken by the application to continue or complete the TWI transfer.
The TWI transfer is suspended until the TWINT flag is cleared by software.
When the TWINT flag is set, the status code in TWSR is used to determine the appropriate soft-
ware action. For each status code, the required software action and details of the following serial
transfer are given in
these tables.
In the Master Transmitter mode, a number of data bytes are transmitted to a slave receiver (see
Figure
of the following address packet determines whether Master Transmitter or Master Receiver
mode is to be entered. If SLA+W is transmitted, MT mode is entered, if SLA+R is transmitted,
MR mode is entered. All the status codes mentioned in this section assume that the prescaler
bits are zero or are masked to zero.
Figure 97
96). In order to enter a Master mode, a START condition must be transmitted. The format
to
Figure
Table 88
103, circles are used to indicate that the TWINT flag is set. The numbers
to
Table
91. Note that the prescaler bits are masked to zero in
2467V–AVR–02/11
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