HAL815 datasheet(23/24 Pages) MICRONAS

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ADVANCE INFORMATION

HAL 815

Micronas

5.5. Register Information

CLAMP-LOW

– The register range is from 0 up to 1023.

– The register value is calculated by:

CLAMP-HIGH

– The register range is from 0 up to 2047.

– The register value is calculated by:

VOQ

– The register range is from

−1024 up to 1023.

– The register value is calculated by:

SENSITIVITY

– The register range is from

−8192 up to 8191.

– The register value is calculated by:

TC and TCSQ

– The TC register range is from

−31 up to 31.

– The TCSQ register range is from 0 up to 31.

Please refer Section 4.2. on page 17 for the recom-

mended values.

MODE

– The register range is from 0 up to 63 and contains

the settings for FILTER and RANGE:

Please refer Section 2.2. on page 7 for the available

FILTER and RANGE values.

ADC-READOUT

– This register is read only.

– The register range is from

−8192 up to 8191.

DEACTIVATE

– This register can only be written.

– The register has to be written with 2063 decimal

(80F hexadecimal) for the deactivation.

– The sensor can be reset with an Activate pulse on

the output pin or by switching off and on the supply

voltage.

5.6. Programming Information

If the content of any register (except the lock registers)

is to be changed, the desired value must first be writ-

ten into the corresponding RAM register. Before read-

ing out the RAM register again, the register value must

be permanently stored in the EEPROM.

Permanently storing a value in the EEPROM is done

by first sending an ERASE command followed by

sending a PROM command. The address within the

ERASE and PROM commands is not important.

ERASE and PROM act on all registers in parallel.

If all HAL 815 registers are to be changed, all writing

commands can be sent one after the other, followed by

sending one ERASE and PROM command at the end.

Low Clamping Voltage

VDD

* 2048

CLAMP-LOW =

High Clamping Voltage

VDD

* 2048

CLAMP-HIGH =

VOQ

VDD

* 1024

VOQ =

Sensitivity

2048

SENSITIVITY =

MODE = FILTER * 8 + RANGE

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