Texas Instruments MSP430x1xx - Page 413

ADC10 Registers
18-27
ADC10
ADC10CTL1, ADC10 Control Register 1
15 14 13 12 11 10 9 8
INCHx SHSx ADC10DF ISSH
rw−(0) rw−(0) rw−(0) rw−(0) rw−(0) rw−(0) rw−(0) rw−(0)
76543210
ADC10DIVx ADC10SSELx CONSEQx
ADC10
BUSY
rw−(0) rw−(0) rw−(0) rw−(0) rw−(0) rw−(0) rw−(0) r−0
Modifiable only when ENC = 0
INCHx
Bits
15-12
Input channel select. These bits select the channel for a single-conversion or
the highest channel for a sequence of conversions.
0000 A0
0001 A1
0010 A2
0011 A3
0100 A4
0101 A5
0110 A6
0111 A7
1000 Ve
REF+
1001 V
REF−
/Ve
REF−
1010 Temperature sensor
1011 (V
CC
– V
SS
) / 2
1100 (V
CC
– V
SS
) / 2
1101 (V
CC
– V
SS
) / 2
1110 (V
CC
– V
SS
) / 2
1111 (V
CC
– V
SS
) / 2
SHSx
Bits
11-10
Sample-and-hold source select
00 ADC10SC bit
01 Timer_A.OUT1
10 Timer_A.OUT0
11 Timer_A.OUT2
ADC10DF
Bit 9 ADC10 data format
0 Straight binary
1 2’s complement
ISSH
Bit 8 Invert signal sample-and-hold
0 The sample-input signal is not inverted.
1 The sample-input signal is inverted.