Vicom Systems FC-FC3 Manual de usuario descargar pdf (Pagina 59)

CONFIDENTIAL [AK8999A/AW/AD]

MS1600-E-00 2014/05

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j) Measurement mode setup (EEPROM name: MM1, MM2)

This EEPROM is used for setting up the measurement mode for the AK8999A.

A setup of a sampling frequency, supply voltage & sensor drive voltage, the enable / disable of

Internal SCF & SMF, the internal / external of a temperature sensor, the internal switching of VP &

VN, and the initial state of VOUT pin at power-up can be performed.

Address : 0D hex D[7:0] = ESCF[1:0], EVD[1:0], ESF[0] , EVPN[0], ETMP[1:0]

D[7:0] Symbol Mode setup

D[7] EVPN[0] VP & VN internal switching EEPROM

0 VPNN VP->VP, VN->VN (default)

1 VPNR VP->VN, VN->VP

D[6:5] ETMP[1:0] Temperature sensor Internal & External change EEPROM

00 TMPESi External temperature sensor use & Drive sink current (default)

01 TMPESo External temperature sensor use & Drive source current

10 TMPI Internal temperature sensor use

11 Reserved Setup prohibited

D[4:3] ESCF[1:0] Internal SCF & SMF setup EEPROM

00 SCDS Internal SCF & SMF disable (default)

01 SCEN1 Internal SCF & SMF enable & Cutoff frequency 1kHz

10 SCEN2 Internal SCF & SMF enable & Cutoff frequency 500Hz

11 SCEN3 Internal SCF & SMF enable & Cutoff frequency 250Hz

D[2:1] EVD[1:0] Supply voltage & sensor drive voltage setup EEPROM

00 VDD302 Supply voltage at 3V & sensor drive voltage at 2.2V (default)

01 VDD332 Supply voltage at 3.3V & sensor drive voltage at 2.2V

10 VDD502 Supply voltage at 5V & sensor drive voltage at 2.2V

11 VDD504 Supply voltage at 5V & sensor drive voltage at 4V

D[0] ESF[0] Sampling frequency setup EEPROM

0 SF11 Sampling frequency 8.33kHz (default)

1 SF1 Sampling frequency 0.83kHz

Address : 0E hex D[1:0] = EVOUT[1:0]

D[1:0] Symbol Mode setup

D[1:0] EVOUT[1:0] Initial state of VOUT pin at power-up setup EEPROM

00 STVSS VSS set at power-up (default)

01 STVDD VDD set at power-up

10 ST1/2VDD 0.5*VDD set at power-up

11 Reserved Setup prohibited

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Vicom Systems FC-FC3 Manual de usuario Pagina 59