ATMEGA2561R231-MU Atmel, ATMEGA2561R231-MU Datasheet - Page 347

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ATMEGA2561R231-MU

Manufacturer Part Number
ATMEGA2561R231-MU
Description
BUNDLE ATMEGA2561/RF231 QFN
Manufacturer
Atmel
Datasheet

Specifications of ATMEGA2561R231-MU

Frequency
2.4GHz
Modulation Or Protocol
802.15.4 Zigbee, 6LoWPAN, RF4CE, SP100, WirelessHART™, ISM
Data Interface
PCB, Surface Mount
Memory Size
256kB Flash, 4kB EEPROM, 8kB RAM
Antenna Connector
PCB, Surface Mount
Package / Case
64-QFN, 32-QFN
Processor Series
ATMEGA256x
Core
AVR8
Data Bus Width
8 bit
Program Memory Type
Flash
Program Memory Size
256 KB
Data Ram Size
8 KB
Development Tools By Supplier
ATAVRRZ541, ATAVRRAVEN, ATAVRRZUSBSTICK, ATAVRISP2, ATAVRRZ201
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Supply
-
Power - Output
-
Operating Temperature
-
Applications
-
Sensitivity
-
Data Rate - Maximum
-
Current - Transmitting
-
Current - Receiving
-
Lead Free Status / Rohs Status
 Details
29.7.13
29.7.14
29.7.15
2549M–AVR–09/10
Reading the Signature Bytes
Reading the Calibration Byte
Parallel Programming Characteristics
Figure 29-6. Mapping Between BS1, BS2 and the Fuse and Lock Bits During Read
The algorithm for reading the Signature bytes is as follows (refer to
page 341
1. A: Load Command “0000 1000”.
2. B: Load Address Low Byte (0x00 - 0x02).
3. Set OE to “0”, and BS to “0”. The selected Signature byte can now be read at DATA.
4. Set OE to “1”.
The algorithm for reading the Calibration byte is as follows (refer to
page 341
1. A: Load Command “0000 1000”.
2. B: Load Address Low Byte, 0x00.
3. Set OE to “0”, and BS1 to “1”. The Calibration byte can now be read at DATA.
4. Set OE to “1”.
Figure 29-7. Parallel Programming Timing, Including some General Timing Requirements
(DATA, XA0/1, BS1, BS2)
for details on Command and Address loading):
for details on Command and Address loading):
Data & Contol
RDY/BSY
Extended Fuse Byte
PAGEL
Fuse Low Byte
XTAL1
Fuse High Byte
WR
Lock Bits
t
t
BVPH
DVXH
ATmega640/1280/1281/2560/2561
BS2
BS2
t
t
XHXL
PHPL
0
1
0
1
t
t
t
t
XLDX
PLBX
XLWL
PLWL
t
BVWL
BS1
t
WLWH
WLRL
0
1
“Programming the Flash” on
“Programming the Flash” on
DATA
t
WLBX
t
WLRH
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