ATmega1284PR231 Atmel Corporation, ATmega1284PR231 Datasheet - Page 135
ATmega1284PR231
Manufacturer Part Number
ATmega1284PR231
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT86RF231.pdf
(198 pages)
2.ATMEGA1284PR231.pdf
(380 pages)
3.ATMEGA1284PR231.pdf
(20 pages)
Specifications of ATmega1284PR231
Flash (kbytes)
128 Kbytes
Max. Operating Frequency
20 MHz
Max I/o Pins
32
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)
16
Eeprom (bytes)
4096
Operating Voltage (vcc)
1.8 to 3.6
Timers
3
Frequency Band
2.4 GHz
Max Data Rate (mb/s)
2
Antenna Diversity
Yes
External Pa Control
Yes
Power Output (dbm)
3
Receiver Sensitivity (dbm)
-101
Receive Current Consumption (ma)
13.2
Transmit Current Consumption (ma)
14.4
Link Budget (dbm)
104
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8111C–MCU Wireless–09/09
Bit
+0x83
Read/Write
Reset Value
AES_REQUEST
7
W
0
• Bits 3 - AES_DIR
This register bit sets the AES operation direction, either encryption or decryption.
Table 11-7.
• Bit [2:0] - Reserved
Register 0x94 (AES_CTRL_MIRROR):
Register 0x94 is a mirrored version of register 0x83 (AES_CTRL), for details refer to register
0x83 (AES_CTRL).
This register could be used to start a security operation within a single SRAM access by append-
ing it to the data stream and setting register bit AES_REQUEST = 1.
Register Bit
AES_DIR
R/W
6
0
AES Direction
AES_MODE
R/W
5
0
Value
0
1
Description
AES encryption (ECB, CBC)
AES decryption
R/W
4
0
AES_DIR
R/W
3
0
2
R
0
Reserved
1
R
0
AT86RF231
0
R
0
AES_CTRL
135
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