ATmega1284PR231 Atmel Corporation, ATmega1284PR231 Datasheet - Page 8

• 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

1.3.3
8111C–MCU Wireless–09/09
Bit
0x03
Read/Write
Initial Value
Register Description
R/W
7
0
PAD_IO
Register 0x03 (TRX_CTRL_0):
The TRX_CTRL_0 register controls the drive current of the digital output pads and the CLKM
clock rate.
• Bit [7:6] - PAD_IO
The register bits set the output driver current of all digital output pads, except CLKM.
Table 1-5.
Note:
• Bit [5:4] - PAD_IO_CLKM
The register bits set the output driver current of pin CLKM. Refer also to
Oscillator (XOSC)” on page
Table 1-6.
• Bit 3 - CLKM_SHA_SEL
Refer to
• Bit [2:0] - CLKM_CTRL
Refer to
Register Bit
PAD_IO
Register Bit
PAD_IO_CLKM
R/W
6
0
1. Reset values of register bits are underlined characterized in the document.
Section 9.6 “Crystal Oscillator (XOSC)” on page
Section 9.6 “Crystal Oscillator (XOSC)” on page
R/W
5
0
Digital Output Driver Strength
CLKM Driver Strength
PAD_IO_CLKM
R/W
4
1
116.
CLKM_SHA_SEL
Value
Value
0
1
2
3
0
1
2
3
(1)
R/W
3
1
Description
2 mA
4 mA
6 mA
8 mA
Description
2 mA
4 mA
6 mA
8 mA
R/W
2
0
116.
116.
CLKM_CTRL
R/W
1
0
AT86RF231
Section 9.6 “Crystal
R/W
0
1
TRX_CTRL_0
8