ADS1218_14 Datasheet, PDF (32/45 Pages) Texas Instruments – 8-Channel, 24-Bit ANALOG-TO-DIGITAL CONVERTER with FLASH Memory

ADS1218
SBAS187C – SEPTEMBER 2001 – REVISED SEPTEMBER 2005
CRAM
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Copy RAM Bank to Registers
Description: Copy the selected RAM Bank to the Configuration Registers. This will overwrite all of the registers
with the data from the RAM bank.
Operands: a
Bytes: 1
Encoding: 1100 0aaa
Data Transfer Sequence:
Copy RAM Bank 0 to the Registers
D_IN 1100 0000
CSRAMX
Calculate RAM Bank Checksum
Description: Calculate the checksum of the selected RAM Bank. The checksum is calculated as a sum of all the
bytes with the carry ignored. The ID, DRDY, and DIO bits are masked so they are not included in the checksum.
Operands: a
Bytes: 1
Encoding: 1101 0aaa
Data Transfer Sequence:
Calculate Checksum for RAM Bank 3
D_IN 1101 0011 • • • ⁽¹⁾ xxxx xxxx
D_OUT
Checksum
NOTE: (1) For wait time, refer to timing specification.
CSARAMX
Calculate the Checksum for all RAM Banks
Description: Calculate the checksum of all RAM Banks. The checksum is calculated as a sum of all the bytes
with the carry ignored. The ID, DRDY, and DIO bits are masked so they are not included in the checksum.
Operands: None
Bytes: 1
Encoding: 1101 1000
Data Transfer Sequence:
D_IN 1101 1000 • • • ⁽¹⁾ xxxx xxxx
D_OUT
Checksum
NOTE: (1) For wait time, refer to timing specification.
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