HAL800 datasheet(23/24 Pages) MICRONAS

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HAL 800

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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:

MODE

– The register range is from 0 up to 7 and contains the

settings for FILTER and RANGE

ADC-READOUT

– This register is read only.

– The register range is from

−8192 up to 8191.

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.

5.6. Programming Information

If you want to change the content of any register

(except the lock registers) you have to write the

desired value into the corresponding RAM register at

first.

If you want to permanently store the value in the

EEPROM, you have to send an ERASE command first

and a PROM command afterwards. The address within

the ERASE and PROM command is not important.

ERASE and PROM acts on all registers in parallel.

If you want to change all registers of the HAL 800, you

can send all writing commands one after each other

and send 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 =

Table 5–4: Parameters for the MODE register

MODE

FILTER

−3 dB Frequency

RANGE

Magnetic Field Range

2 kHz

−30 mT...30 mT

2 kHz

−75 mT...75 mT

2 kHz

−90 mT...90 mT

2 kHz

−150 mT...150 mT

500 Hz

−30 mT...30 mT

500 Hz

−75 mT...75 mT

500 Hz

−90 mT...90 mT

500 Hz

−150 mT...150 mT

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