ATmega2561R212 Atmel Corporation, ATmega2561R212 Datasheet - Page 303
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ATmega2561R212
Manufacturer Part Number
ATmega2561R212
Description
Manufacturer
Atmel Corporation
Specifications of ATmega2561R212
Flash (kbytes)
256 Kbytes
Max. Operating Frequency
16 MHz
Max I/o Pins
54
Spi
3
Twi (i2c)
1
Uart
2
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
15
Analog Comparators
1
Crypto Engine
AES
Sram (kbytes)
8
Eeprom (bytes)
4096
Operating Voltage (vcc)
1.8 to 3.6
Timers
6
Frequency Band
700/800/900MHz
Max Data Rate (mb/s)
1
Antenna Diversity
No
External Pa Control
Yes
Power Output (dbm)
10
Receiver Sensitivity (dbm)
-110
Receive Current Consumption (ma)
9.0
Transmit Current Consumption (ma)
18 at 5dBm
Link Budget (dbm)
120
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28.3.1
28.3.2
28.3.2.1
28.3.2.2
28.3.2.3
28.3.3
2549N–AVR–05/11
Bypass Register
Device Identification Register
Reset Register
Version
Part Number
Manufacturer ID
The Bypass Register consists of a single Shift Register stage. When the Bypass Register is
selected as path between TDI and TDO, the register is reset to 0 when leaving the Capture-DR
controller state. The Bypass Register can be used to shorten the scan chain on a system when
the other devices are to be tested.
Figure 28-1
Figure 28-1. The Format of the Device Identification Register
Version is a 4-bit number identifying the revision of the component. The JTAG version number
follows the revision of the device. Revision A is 0x0, revision B is 0x1 and so on.
The part number is a 16-bit code identifying the component. The JTAG Part Number for
ATmega640/1280/1281/2560/2561 is listed in
The Manufacturer ID is a 11-bit code identifying the manufacturer. The JTAG manufacturer ID
for ATMEL is listed in
The Reset Register is a test Data Register used to reset the part. Since the AVR tri-states Port
Pins when reset, the Reset Register can also replace the function of the unimplemented optional
JTAG instruction HIGHZ.
A high value in the Reset Register corresponds to pulling the external Reset low. The part is
reset as long as there is a high value present in the Reset Register. Depending on the fuse set-
tings for the clock options, the part will remain reset for a reset time-out period (see
Sources” on page
not latched, so the reset will take place immediately, as shown in
Bit
Device ID
shows the structure of the Device Identification Register.
MSB
31
Version
4 bits
41) after releasing the Reset Register. The output from this Data Register is
Table 30-6 on page
28
27
ATmega640/1280/1281/2560/2561
Part Number
16 bits
338.
Table 30-6 on page
12
11
Figure 28-2 on page
338.
Manufacturer ID
11 bits
1
304.
1-bit
LSB
“Clock
1
0
303
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