CC2510FX Datasheet, PDF (144/244 Pages) List of Unclassifed Manufacturers – True System-on-Chip with Low Power RF Transceiver and 8051 MCU

C2510Fx / CC2511Fx
ADCCON2 (0xB5) – ADC Control 2
Bit Name
7:6 SREF[1:0]
5:4 SDIV[1:0]
3:0 SCH[3:0]
Reset R/W
00
R/W
01
R/W
00
R/W
Description
Selects reference voltage used for the sequence of conversions
00
Internal 1.25V reference
01
External reference on AIN7 pin (only CC2510Fx)
10
AVDD pin
11
External reference on AIN6-AIN7 differential input (only CC2510Fx)
Sets the decimation rate for channels included in the sequence of
conversions. The decimation rate also determines the resolution and time
required to complete a conversion.
00
64 dec rate (7 bits resolution)
01
128 dec rate (9 bits resolution)
10
256 dec rate (10 bits resolution)
11
512 dec rate (12 bits resolution)
Sequence Channel Select. Selects the end of the sequence.
SCH ≤ 0111: A conversion sequence will contain a conversion from each
ADC input, starting at AIN0 and ending at the input programmed in
ADCCON2.SCH.
1000 ≤ SCH ≤ 1011: The sequence will start at the differential input pair
(AIN0 – AIN1) and stop at the input pair given by ADCCON2.SCH.
SCH ≥ 1100: Only single conversions are performed.
When reading the ADCCON2.SCH bits, the number returned will indicate what
the last conversion was. Please see Section 13.10.2.6 for details.
0000 AIN0
0001 AIN1
0010 AIN2
0011 AIN3
0100 AIN4
0101 AIN5
0110 AIN6
0111 AIN7
1000 AIN0-AIN1
1001 AIN2-AIN3
1010 AIN4-AIN5
1011 AIN6-AIN7
1100 GND
1101 Positive voltage reference
1110 Temperature sensor
1111 AVDD/3
SWRS055D
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