Texas Instruments MSP430x1xx User Manual page 389

Figure 18−1. ADC10 Block Diagram
REFOUT
Ve REF+
0
V REF+
1
V REF− /
INCHx
4
Auto CONSEQx
A0 0000 SREF2
A1 0001 0001
A2 0010
A3 0011
Sample
A4 0100
and
A5 0101
Hold
A6 0110
A7 0111
S/H
1000
1001
1010
1011
1100
1101
1110 SAMPCON
1111
V CC
INCHx=0Bh
Ref_x
R
R
V SS
ADC10CT
REFBURST
Ve REF−
V CC
11 10 01 00
V SS
1 0 ADC10ON
V R− V R+
10−bit SAR
Convert
BUSY
Sample Timer
/4/8/16/64
ADC10DF
ADC10SHTx MSC
ADC10MEM
Data Transfer
n
Controller
ADC10SA
ADC10TB ADC10B1
REF2_5V
ADC10SR
on
1.5 V or 2.5 V
Reference
Ref_x
SREF1
SREF0 ADC10OSC
ADC10SSELx
ADC10DIVx
00 00
01 01 ACLK
Divider
/1 .. /8
10 10 MCLK
11 11 SMCLK
ADC10CLK
ISSH
ENC
SHI
0
1 Sync
RAM, Flash, Peripherials
Halt CPU
ADC10 Introduction
REFON
INCHx=0Ah
V CC
SHSx
00 00 ADC10SC
01 01 TA1
10 10 TA0
11 11 TA2
ADC10 18-3