ATA6616-P3QW Atmel, ATA6616-P3QW Datasheet - Page 235

• Manufacturer Part Number: ATA6616-P3QW
• Description: TXRX MULTICHIP MOD LIN SIP 38QFN
• Manufacturer: Atmel
• Series: AVR® ATA66 LIN-SBCr

Specifications of ATA6616-P3QW

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: I²C, LIN, SPI, UART/USART, USI
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 16
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 11x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 38-VQFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

4.18.12.7
9132D–AUTO–12/10
AMISCR – Analog Miscellaneous Control Register
• Bits 7:3 – Reserved Bits
These bits are reserved for future use. For compatibility with future devices, they must be writ-
ten to zero when AMISCR is written.
• Bit 2 – AREFEN: External Voltage Reference Input Enable
When this bit is written logic one, the voltage reference for the ADC is input from AREF pin as
described in
nal AREF higher than (AVcc - 1V) is not recommended, as this will affect ADC accuracy. The
internal voltage reference options may not be used if an external voltage is being applied to
the AREF pin. It is recommended to use DIDR register bit function (digital input disable) when
AREFEN is set.
• Bit 1 – XREFEN: Internal Voltage Reference Output Enable
When this bit is written logic one, the internal voltage reference 1.1V or 2.56V is output on
XREF pin as described in
bit function (digital input disable) when XREFEN is set.
Bit
Read/Write
Initial Value
Table 4.18.11 on page
R
7
0
-
R
6
0
Table 4.18.11 on page
-
R
5
0
-
228. If active channels are used, using AVcc or an exter-
R
4
0
-
Atmel ATA6616/ATA6617
228. It is recommended to use DIDR register
R
3
0
-
AREFEN XREFEN ISRCEN
R/W
2
0
R/W
1
0
R/W
0
0
AMISCR
235