ADS1218_14 Datasheet, PDF (34/45 Pages) Texas Instruments – 8-Channel, 24-Bit ANALOG-TO-DIGITAL CONVERTER with FLASH Memory

ADS1218
SBAS187C – SEPTEMBER 2001 – REVISED SEPTEMBER 2005
CSFL
www.ti.com
Calculate Checksum for all Flash Memory Pages
Description: Calculate the checksum for all Flash memory pages. The checksum is calculated as a sum of all
the bytes with the carry ignored. All bits are included in the checksum calculation; there is no masking of bits.
Operands: None
Bytes: 1
Encoding: 1110 1100
Data Transfer Sequence:
D_IN 1110 1100
SELFCAL
Offset and Gain Self Calibration
Description: Starts the process of self calibration. The Offset Control Register (OCR) and the Full-Scale
Register (FSR) are updated with new values after this operation.
Operands: None
Bytes: 1
Encoding: 1111 0000
Data Transfer Sequence:
D_IN 1111 0000
SELFOCAL
Offset Self Calibration
Description: Starts the process of self-calibration for offset. The Offset Control Register (OCR) is updated after
this operation.
Operands: None
Bytes: 1
Encoding: 1111 0001
Data Transfer Sequence:
D_IN 1111 0001
SELFGCAL
Gain Self Calibration
Description: Starts the process of self-calibration for gain. The Full-Scale Register (FSR) is updated with new
values after this operation.
Operands: None
Bytes: 1
Encoding: 1111 0010
Data Transfer Sequence:
D_IN 1111 0010
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