Vicom Systems FC-FC3 Manual de usuario descargar pdf (Pagina 61)

CONFIDENTIAL [AK8999A/AW/AD]

MS1600-E-00 2014/05

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m) OSC frequency adjustment (EEPROM name: OSC)

This EEPROM is used for adjusting the AK8999A operation clock. Perform an adjustment to attain a

frequency of 1000kHz. Reading the ratio data from the OSC variable ratio storing register (Register

name: CM2), the adjustment data of the OSC frequency adjustment EERPOM is calculated.

Frequency Δf in the table below indicates a value varying with the setup values of the EEPROM. The

ratio is benchmarked to 1000kHz (OSC ideal value) as 100%

(Ratio = Frequency Δf/( Frequency Δf+1000[kHz])*100[%]).

Address : 10 hex D[3:0] = EFR[3:0]

EFR[3:0] Ratio FrequencyΔf

Description

Dec Hex Bin (%) (kHz)

-5 B 1011 -34 -251

-4 C 1100 -25 -197

-3 D 1101 -17 -146

-2 E 1110 -11 -99

-1 F 1111 -5 -52

0 0 0000 0 0 Default

1 1 0001 5 49

2 2 0010 10 106

3 3 0011 14 162

4 4 0100 18 224

5 5 0101 22 274

6 6 0110 25 329

7 7 0111 28 384

Note) Hex 8 to A are prohibited for setup.

1 2 ... 56 57 58 59 60 61 62 63 64 65 66 67 68

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Vicom Systems FC-FC3 Manual de usuario Pagina 61