ATA6613-EK Atmel, ATA6613-EK Datasheet - Page 277

• Manufacturer Part Number: ATA6613-EK
• Description: BOARD DEMO LIN-MCM FOR ATA6613
• Manufacturer: Atmel

Specifications of ATA6613-EK

• Main Purpose: Interface, LIN + MCU
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: ATA6613
• Primary Attributes: LIN-SBC (System-Basis-Chip) Transceiver, LIN 2.0, Voltage Regulator, Window Watchdog
• Secondary Attributes: 16 kB Flash, 4 Power Modes: Pre-Normal, Normal, Sleep, Silent, 48-QFN
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

6.21.6
6.21.6.1
9111H–AUTO–01/11
ADC Conversion Result
ADC Multiplexer Selection Register – ADMUX
After the conversion is complete (ADIF is high), the conversion result can be found in the ADC
Result Registers (ADCL, ADCH).
For single ended conversion, the result is
where V
Table 6-98 on page 277
0x3FF represents the selected reference voltage minus one LSB.
Table 6-98.
ADC
• Bit 7:6 – REFS1:0: Reference Selection Bits
• Bit 5 – ADLAR: ADC Left Adjust Result
• Bit 4 – Res: Reserved Bit
• Bits 3:0 – MUX3:0: Analog Channel Selection Bits
Initial Value
Read/Write
REFS1
These bits select the voltage reference for the ADC, as shown in
are changed during a conversion, the change will not go in effect until this conversion is
complete (ADIF in ADCSRA is set). The internal voltage reference options may not be
used if an external reference voltage is being applied to the AREF pin.
The ADLAR bit affects the presentation of the ADC conversion result in the ADC Data
Register. Write one to ADLAR to left adjust the result. Otherwise, the result is right
adjusted. Changing the ADLAR bit will affect the ADC Data Register immediately, regard-
less of any ongoing conversions. For a complete description of this bit (see
Data Register – ADCL and ADCH” on page
This bit is an unused bit in the Atmel
The value of these bits selects which analog inputs are connected to the ADC. See
6-99 on page 278
will not go in effect until this conversion is complete (ADIF in ADCSRA is set).
0
0
1
1
Bit
=
IN
V
---------------------------- -
IN
is the voltage on the selected input pin and V
V
REFS0
REF
Voltage Reference Selections for ADC
1024
REFS1
0
1
0
1
R/W
7
0
Voltage Reference Selection
AREF, Internal V
AV
Reserved
Internal 1.1V Voltage Reference with external capacitor at AREF pin
for details. If these bits are changed during a conversion, the change
REFS0
R/W
CC
and
6
0
with external capacitor at AREF pin
Table 6-99 on page
ADLAR
R/W
5
0
ref
turned off
®
ATA6612/ATA6613, and will always read as zero.
R
4
–
0
Atmel ATA6612/ATA6613
280).
278). 0x000 represents analog ground, and
MUX3
R/W
3
0
REF
the selected voltage reference (see
MUX2
R/W
2
0
MUX1
R/W
Table
1
0
6-98. If these bits
MUX0
R/W
0
0
“The ADC
ADMUX
Table
277