ATmega1284PR231 Atmel Corporation, ATmega1284PR231 Datasheet - Page 123

• Manufacturer Part Number: ATmega1284PR231
• Manufacturer: Atmel Corporation

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

8111C–MCU Wireless–09/09
Bit
+0x1A
Read/Write
Reset Value
Bit
+0x1B
Read/Write
Reset Value
PLL_DCU_START
PLL_CF_START
R/W
R/W
7
7
0
0
Table 9-17.
Register 0x1A (PLL_CF):
This register controls the operation of the center frequency calibration loop.
• Bit 7 - PLL_CF_START
PLL_CF_START = 1 initiates the center frequency calibration. The calibration cycle has finished
after t
• Bit [6:0] - Reserved
Register 0x1B (PLL_DCU):
This register controls the operation of the delay cell calibration loop.
Register Bit
CHANNEL
R/W
6
6
R
1
0
TR21
= 35 µs (typ.). The register bit is cleared immediately after finishing the calibration.
Channel Assignment for IEEE 802.15.4 - 2.4 GHz Band
R/W
R/W
5
5
0
1
Value
0x0B
0x0C
0x0D
0x0E
0x1A
0x0F
0x10
0x11
0x12
0x13
0x14
0x15
0x16
0x17
0x18
0x19
R/W
R/W
4
4
1
0
Channel Number k
Reserved
Reserved
R/W
R/W
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
3
3
0
0
R/W
R/W
2
2
1
0
R/W
R/W
Center Frequency [MHz]
1
1
1
0
AT86RF231
2405
2410
2415
2420
2425
2430
2435
2440
2445
2450
2455
2460
2465
2470
2475
2480
R/W
R/W
0
0
1
0
PLL_DCU
PLL_CF
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