ATmega1284PR231 Atmel Corporation, ATmega1284PR231 Datasheet - Page 111

• 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

9.4.4
8111C–MCU Wireless–09/09
Bit
+0x10
Read/Write
Reset Value
Register Description
AVREG_EXT
R/W
7
0
AVDD_OK
6
R
0
Register 0x10 (VREG_CTRL):
This register controls the use of the voltage regulators and indicates the status of these.
• Bit 7 - AVREG_EXT
If set this register bit disables the internal analog voltage regulator to apply an external regulated
1.8V supply for the analog building blocks.
Table 9-5.
• Bit 6 - AVDD_OK
This register bit indicates if the internal 1.8V regulated voltage supply AVDD has settled. The bit
is set to logic high, if AVREG_EXT = 1.
Table 9-6.
• Bit [5:4] - Reserved
• Bit 3 - DVREG_EXT
If set this register bit disables the internal digital voltage regulator to apply an external regulated
1.8V supply for the digital building blocks.
Table 9-7.
Register Bit
AVREG_EXT
Register Bit
AVDD_OK
Register Bit
DVREG_EXT
R/W
5
0
Reserved
Regulated Voltage Supply Control for Analog Building Blocks
Regulated Voltage Supply Control for Analog Building Blocks
Regulated Voltage Supply Control for Digital Building Blocks
R/W
4
0
Value
Value
Value
0
1
0
1
0
1
DVREG_EXT
R/W
Description
Internal voltage regulator enabled, analog section
Internal voltage regulator disabled, use external regulated 1.8V
supply voltage for the analog section
Description
Analog voltage regulator disabled or supply voltage not stable
Analog supply voltage has settled
Description
Internal voltage regulator enabled, digital section
Internal voltage regulator disabled, use external regulated 1.8V
supply voltage for the digital section
3
0
DVDD_OK
2
R
0
R/W
1
0
Reserved
AT86RF231
R/W
0
0
VREG_CTRL
111