Cirrus-logic CS5534-BS Manuel d'utilisateur télécharger pdf (Page 21)

CS5532/34-BS

DS755F3 21

PERFORM CALIBRATION

Function: These commands instruct the ADC to perform a calibration on the physical input channel se-

lected by the setup register which is chosen by the command byte pointer bits (CSRP2 -

CSRP0).

CSRP [2:0] (Channel Setup Register Pointer Bits)

000 Setup 1

001 Setup 2

010 Setup 3

011 Setup 4

100 Setup 5

101 Setup 6

110 Setup 7

111 Setup 8

CC [2:0] (Calibration Control Bits)

000 Reserved

001 Self-Offset Calibration

010 Self-Gain Calibration

011 Reserved

100 Reserved

101 System-Offset Calibration

110 System-Gain Calibration

111 Reserved

SYNC1

Function: Part of the serial port re-initialization sequence.

SYNC0

Function: End of the serial port re-initialization sequence.

NULL

Function:

This command is used to clear a port flag and keep the converter in the continuous conversion mode.

D7(MSB) D6 D5 D4 D3 D2 D1 D0

1 0 CSRP2 CSRP1 CSRP0 CC2 CC1 CC0

D7(MSB) D6 D5 D4 D3 D2 D1 D0

11111111

D7(MSB) D6 D5 D4 D3 D2 D1 D0

11111110

D7(MSB) D6 D5 D4 D3 D2 D1 D0

00000000

1 2 ... 16 17 18 19 20 21 22 23 24 25 26 ... 49 50

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Cirrus-logic CS5534-BS Manuel d'utilisateur Page 21