DS1876 datasheet(26/69 Pages) MAXIM

26 / 69 page

26 _____________________________________________________________________________________

SFP Controller with Dual LDD Interface

Table 02h Register Map

Table 04h Register Map

<C> or <_/C> = Common, <D> or <_/D> = Different, <M> or <_/M> = Mixture of common and different.

*The final result must be XORed with BB40h before writing to this register.

The access codes represent the factory default values of PW_ENA and PW_ENB (Table 02h, Registers C0h–C1h).

These registers also allow for custom permissions.

<C> or <_/C> = Common, <D> or <_/D> = Different, <M> or <_/M> = Mixture of common and different.

TABLE 02h (PW2)

ROW

(HEX)

ROW NAME

WORD 0

WORD 1

WORD 2

WORD 3

BYTE 0/8

BYTE 1/9

BYTE 2/A

BYTE 3/B

BYTE 4/C

BYTE 5/D

BYTE 6/E

BYTE 7/F

<0/C> CONFIG0

<8/C>MODE

<4/C>TINDEX

RESERVED

<10> DEVICE ID <10> DEVICE VER

<8/C> CONFIG1

CNFGA

CNFGB

CNFGC

DEVICE ADDRESS

RANGING2

RANGING1

RSHIFT2

RSHIFT1

<8/C> SCALE0

RESERVED

VCC SCALE

RESERVED

<8/C> SCALE1

BMON2 SCALE

PMON2 SCALE

BMON1 SCALE

PMON1 SCALE

<8/C> OFFSET0

INTERNAL TEMP OFFSET*

VCC OFFSET

RESERVED

<8/C> OFFSET1

BMON2 OFFSET

PMON2 OFFSET

BMON1 OFFSET

PMON1 OFFSET

<9/C> PWD VALUE

PW1 MSW

PW1 LSW

PW2 MSW

PW2 LSW

<8/C> THRESHOLD

RESERVED

HBIAS2 DAC

HTXP2 DAC

LTXP2 DAC

RESERVED

HBIAS1 DAC

HTXP1 DAC

LTXP1 DAC

<8/C> PWD ENABLE

PW_ENA

PW_ENB

RESERVED

POLARITY

TBLSELPON

<4/C> DAC VALUES

MOD2 DAC

APC2 DAC

MOD1 DAC

APC1 DAC

D0–FF

EMPTY

TABLE 04h (MODULATION LUT)

ROW

(HEX)

ROW NAME

WORD 0

WORD 1

WORD 2

WORD 3

BYTE 0/8

BYTE 1/9

BYTE 2/A

BYTE 3/B

BYTE 4/C

BYTE 5/D

BYTE 6/E

BYTE 7/F

80–C7

<8/D> LUT4

MOD

C8–F7

EMPTY

<8/D> MOD OFFSET

MOD OFFSET

LUT

MOD OFFSET

LUT

MOD OFFSET

LUT

MOD OFFSET

LUT

MOD OFFSET

LUT

MOD OFFSET

LUT

MOD OFFSET

LUT

MOD OFFSET

LUT

ACCESS

CODE

<0/_>

<1/_>

<2/_>

<3/_>

<4/_>

<5/_>

<6/_>

<7/_>

<8/_>

<9/_>

<10/_>

<11/_>

Read

Access

See each

bit/byte

separately

All

PW2

All

N/A

PW1

PW2

N/A

PW2

All

Write

Access

PW2

N/A

All and

DS1876

Hardware

PW2 +

mode

bit

All

PW1

PW2

N/A

PW1

DS1876 Datasheet(PDF) 26 Page - Maxim Integrated Products

DS1876 Datasheet(HTML) 26 Page - Maxim Integrated Products

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