ATMEGA2560R231-CU Atmel, ATMEGA2560R231-CU Datasheet - Page 336

• Manufacturer Part Number: ATMEGA2560R231-CU
• Description: BUNDLE ATMEGA2560/RF231 PBGA
• Manufacturer: Atmel

Specifications of ATMEGA2560R231-CU

• 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: 100-CBGA and 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, ATAVRRZRAVEN
• 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

29.2
2549M–AVR–09/10
Fuse Bits
Table 29-2.
Notes:
The ATmega640/1280/1281/2560/2561 has three Fuse bytes.
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Fuse bytes. Note that the fuses are read as logical zero, “0”, if they are programmed.
Table 29-3.
Note:
BLB1 Mode
Extended Fuse Byte
BODLEVEL2
BODLEVEL1
BODLEVEL0
1
2
3
4
1. Program the Fuse bits and Boot Lock bits before programming the LB1 and LB2.
2. “1” means unprogrammed, “0” means programmed.
See
Memory Lock Bits
describe briefly the functionality of all the fuses and how they are mapped into the
“System and Reset Characteristics” on page 372
–
–
–
–
–
Lock Bit Protection Modes
Extended Fuse Byte
BLB12
(Note:)
(Note:)
(Note:)
1
1
0
0
BLB11
1
0
0
1
Bit No
ATmega640/1280/1281/2560/2561
7
6
5
4
3
2
1
0
Protection Type
No restrictions for SPM or (E)LPM accessing the Boot Loader
section.
SPM is not allowed to write to the Boot Loader section.
SPM is not allowed to write to the Boot Loader section, and
(E)LPM executing from the Application section is not allowed to
read from the Boot Loader section. If Interrupt Vectors are
placed in the Application section, interrupts are disabled while
executing from the Boot Loader section.
(E)LPM executing from the Application section is not allowed to
read from the Boot Loader section. If Interrupt Vectors are
placed in the Application section, interrupts are disabled while
executing from the Boot Loader section.
Brown-out Detector trigger level
Brown-out Detector trigger level
Brown-out Detector trigger level
(1)(2)
(Continued)
Description
–
–
–
–
–
for BODLEVEL Fuse decoding.
Table 29-3
through
1 (unprogrammed)
1 (unprogrammed)
1 (unprogrammed)
Default Value
Table 29-5 on
1
1
1
1
1
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