Datasheet

   
      
    ± 
SLAS262C − OCTOBER 2000 − REVISED MAY 2003
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command period (continued)
Table 1. Command Set (CMR)
SDI Bit D[15:12]
TLC3578 / 2578 COMMAND
TLC3574 / 2574 COMMAND
BINARY HEX
TLC3578 / 2578 COMMAND
TLC3574 / 2574 COMMAND
0000b 0h SELECT analog input channel 0 SELECT analog input channel 0
0001b 1h SELECT analog input channel 1 SELECT analog input channel 1
0010b 2h SELECT analog input channel 2 SELECT analog input channel 2
0011b 3h SELECT analog input channel 3 SELECT analog input channel 3
0100b 4h SELECT analog input channel 4 SELECT analog input channel 0
0101b 5h SELECT analog input channel 5 SELECT analog input channel 1
0110b 6h SELECT analog input channel 6 SELECT analog input channel 2
0111b 7h SELECT analog input channel 7 SELECT analog input channel 3
1000b 8h Reserved
1001b 9h Reserved
1010b Ah WRITE CFR, the last 12 bits of SDI are written into CFR. This command resets FIFO.
1011b Bh SELECT TEST, voltage = (REFP+REFM)/2 (see Note 15)
1100b Ch SELECT TEST, voltage = REFM (see Note 16)
1101b Dh SELECT TEST, voltage = REFP (see Note 17)
1110b Eh FIFO READ, FIFO contents is shown on SDO; (see Note 18)
1111b Fh HARDWARE DEFAULT mode, CFR is loaded with 800h
NOTES: 15. The output code = mid-scale code + bipolar zero error
16. The output code = negative full-scale code + negative full-scale error
17. The output code = positive full-scale code + positive full-scale error
18. The TLC3574 and TLC3578, OD [15:2] is conversion result, OD [1:0] don’t care
The TLC2574 and TLC2578, OD [15:4] is conversion result, OD [3:0] don’t care