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ManualsBrandsTEXAS INSTRUMENTS ManualsData collecting ICsData acquisition IC - DA converter (DAC) VQFN 24
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DAC7678
SBAS493B –FEBRUARY 2010–REVISED JULY 2012
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Table 18. Control Matrix for Read Commands
COMMAND ACCESS BYTE MOST SIGNIFICANT DATA BYTE LEAST SIGNIFICANT DATA BYTE
DESCRIPTION
C3 C2 C1 C0 A3 A2 A1 A0 DB15 DB14 DB13 DB12 DB11 DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
Input Register
0 0 0 0 0 0 0 0 Data[11:4] Data[3:0] X X X X Read from DAC input register channel A
0 0 0 0 0 0 0 1 Data[11:4] Data[3:0] X X X X Read from DAC input register channel B
0 0 0 0 0 0 1 0 Data[11:4] Data[3:0] X X X X Read from DAC input register channel C
0 0 0 0 0 0 1 1 Data[11:4] Data[3:0] X X X X Read from DAC input register channel D
0 0 0 0 0 1 0 0 Data[11:4] Data[3:0] X X X X Read from DAC input register channel E
0 0 0 0 0 1 0 1 Data[11:4] Data[3:0] X X X X Read from DAC input register channel F
0 0 0 0 0 1 1 0 Data[11:4] Data[3:0] X X X X Read from DAC input register channel G
0 0 0 0 0 1 1 1 Data[11:4] Data[3:0] X X X X Read from DAC input register channel H
0 0 0 0 1 X X X X X X X X X X X X X X X X X X X Invalid code
DAC Register
0 0 0 1 0 0 0 0 Data[11:4] Data[3:0] X X X X Read DAC A DAC register
0 0 0 1 0 0 0 1 Data[11:4] Data[3:0] X X X X Read DAC B DAC register
0 0 0 1 0 0 1 0 Data[11:4] Data[3:0] X X X X Read DAC C DAC register
0 0 0 1 0 0 1 1 Data[11:4] Data[3:0] X X X X Read DAC D DAC register
0 0 0 1 0 1 0 0 Data[11:4] Data[3:0] X X X X Read DAC E DAC register
0 0 0 1 0 1 0 1 Data[11:4] Data[3:0] X X X X Read DAC F DAC register
0 0 0 1 0 1 1 0 Data[11:4] Data[3:0] X X X X Read DAC G DAC register
0 0 0 1 0 1 1 1 Data[11:4] Data[3:0] X X X X Read DAC H DAC register
0 0 0 1 1 X X X X X X X X X X X X X X X X X X X Invalid code
Power Down Register
0 1 0 0 X X X X 0 0 0 0 0 0 PD1 PD0 DAC H DAC G DAC F DAC E DAC D DAC C DAC B DAC A Read power down register
Clear Code Register
0 1 0 1 X X X X 0 0 0 0 0 0 0 0 0 0 0 0 0 0 CL1 CL0 Read clear code register
LDAC Register
0 1 1 0 X X X X 0 0 0 0 0 0 0 0 DAC H DAC G DAC F DAC E DAC D DAC C DAC B DAC A Read LDAC register
Internal Reference in Regular/Static Mode
1 0 0 0 X X X X 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 AR Read reference register
Internal Reference in Flexible Mode
1 0 0 1 X X X X 0 0 0 0 0 0 0 0 0 0 0 0 0 TR2 TR1 TR0 Read additional reference register
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