DS1863 datasheet(49/62 Pages) MAXIM

49 / 62 page

Burst-Mode PON Controller

With Integrated Monitoring

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Table 02h, Register 8Dh: Comp Ranging

FACTORY DEFAULT:

00h

READ ACCESS

PW2

WRITE ACCESS

PW2

MEMORY TYPE:

Nonvolatile (SEE)

8Dh

RESERVED

APC

bit7

bit0

This byte controls the Full-Scale range for the Quick-Trip monitoring of the APC reference as well as the closed loop monitoring of

APC.

bit7:3

RESERVED (Default = 0)

bit2:0

APC RANGING: 3-bit value to select the FS comparison voltage for BMD with the APC. Default is

000b and creates a FS voltage of 2.5V.

Table 02h, Register 8Eh: Right Shift1

FACTORY DEFAULT:

00h

READ ACCESS

PW2

WRITE ACCESS

PW2

MEMORY TYPE:

Nonvolatile (SEE)

8Eh

RESERVED

MON1_2

MON1_1

MON1_0

RESERVED

MON2_2

MON2_1

MON2_0

bit7

bit0

Allows for right-shifting the final answer of MON1 and MON2 voltage measurements. This allows for scaling the measurements to

the smallest Full-scale voltage and then right-shifting the final result so the reading is weighted to the correct LSB.

APC2 TO APC0

% OF 2.5V

FS VOLTAGE

000b

100

2.500

001b

80.07

2.002

010b

66.79

1.670

011b

50.18

1.255

100b

40.22

1.006

101b

33.57

0.839

110b

28.82

0.721

111b

25.26

0.632

DS1863 Datasheet(PDF) 49 Page - Maxim Integrated Products

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