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An366 – Cirrus Logic AN366 User Manual

Page 43

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AN366

43

ACCUMULATE MULTIPLE PF READING AND CONFIRM
(See Figure 39.)
SDI = 0x90

0x15 0xFFFFFF

Read PF1

(page 16, register 21)

SDO = 0xFF

0xFF 0x410F40

(0.508278)

SDI = 0x90

0x19 0xFFFFFF

Read PF2

(page 16, register 25)

SDO = 0xFF

0xFF 0x4106A8

(0.5080157)

For 1 to Count {
PF1SUM = PF1SUM + PF1
PF2SUM = PF2SUM + PF2}
PF1AVG = PF1SUM ÷ Count
PF2AVG = PF1SUM ÷ Count

Figure 39. Conversion Window

PHASE COMPENSATION COMPLETE

(RETURN CPCC & FPCC to MAIN)

ACCUMULATE MULTIPLE

PF READING AND

CONFIRM PF = 0.5

3

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