ATmega1280R212 Atmel Corporation, ATmega1280R212 Datasheet - Page 306
ATmega1280R212
Manufacturer Part Number
ATmega1280R212
Description
Manufacturer
Atmel Corporation
Specifications of ATmega1280R212
Flash (kbytes)
128 Kbytes
Max. Operating Frequency
16 MHz
Max I/o Pins
86
Spi
5
Twi (i2c)
1
Uart
4
Adc Channels
16
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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2549N–AVR–05/11
Control corresponds to the Data Direction - DD Register, and the Pull-up Enable - PUExn - cor-
responds to logic expression PUD · DDxn · PORTxn.
Digital alternate port functions are connected outside the dotted box in
to make the scan chain read the actual pin value. For analog function, there is a direct connec-
tion from the external pin to the analog circuit. There is no scan chain on the interface between
the digital and the analog circuitry, but some digital control signal to analog circuitry are turned
off to avoid driving contention on the pads.
When JTAG IR contains EXTEST or SAMPLE_PRELOAD the clock is not sent out on the port
pins even if the CKOUT fuse is programmed. Even though the clock is output when the JTAG IR
contains SAMPLE_PRELOAD, the clock is not sampled by the boundary scan.
Figure 28-3. Boundary-scan Cell for Bi-directional Port Pin with Pull-up Function.
Pull-up Enable (PUE)
Output Control (OC)
Output Data (OD)
Input Data (ID)
0
1
From Last Cell
ATmega640/1280/1281/2560/2561
0
1
0
1
ShiftDR
ClockDR
D
D
FF1
FF0
To Next Cell
Q
Q
UpdateDR
D
G
D
G
LD1
LD0
Q
Q
0
1
0
1
0
1
Figure 28-4 on page 307
EXTEST
Vcc
306
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