ATMEGA128RFA1-ZU Atmel, ATMEGA128RFA1-ZU Datasheet - Page 80
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: 80 of 555
- Download datasheet (6Mb)
9.6.4 Battery Monitor (BATMON)
9.6.4.1 Overview
9.6.4.2 Configuration
9.6.4.3 Data Interpretation
80
ATmega128RFA1
The PHR and the PSDU need to be stored in the Frame Buffer for frame transmission.
The PHR byte is the first byte in the Frame Buffer (address 0x180) and must be
calculated based on the PHR and the PSDU. The maximum frame size supported by
the radio transceiver is 128 bytes. If the TX_AUTO_CRC_ON bit is set in register
PHY_TX_PWR, the FCS field of the PSDU is replaced by the automatically calculated
FCS during frame transmission. There is no need to write the FCS field when using the
automatic FCS generation.
Manipulating individual bytes of the Frame Buffer is simply possible by accessing the
appropriate buffer address.
The minimum frame length supported by the radio transceiver for non IEEE 802.15.4
compliant frames is one byte (Frame Length Field + 1 byte of data).
The main features of the battery monitor are:
• Configurable voltage threshold range from 1.7V to 3.675V
• Generates an interrupt when supply voltage drops below the threshold
The battery monitor (BATMON) detects and indicates a low supply voltage of EVDD.
This is done by comparing the voltage of EVDD with a configurable, internal threshold
voltage. A simplified schematic of the BATMON with the most important input and
output signals is shown in the following figure.
Figure 9-24. Simplified Schematic of BATMON
The Battery Monitor can be configured using the BATMON register. Register subfield
BATMON_VTH sets the threshold voltage. It is configurable with a resolution of 75 mV
in the upper voltage range (BATMON_HR = 1) and with a resolution of 50 mV in the
lower voltage range (BATMON_HR = 0).
The bit BATMON_OK of register BATMON monitors the current value of the battery
voltage:
• If BATMON_OK = 0 then the battery voltage is lower than the threshold voltage;
• If BATMON_OK = 1 then the battery voltage is higher than the threshold voltage;
BATMON_VTH
BATMON_HR
4
For input-to-output mapping
see BATMON register
DAC
Threshold
EVDD
Voltage
+
-
„1“
BATMON_OK
D
clear
Q
BATMON_IRQ
8266B-MCU Wireless-03/11
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