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Ds1876 sfp controller with dual ldd interface – Rainbow Electronics DS1876 User Manual

Page 62

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62 _____________________________________________________________________________________

DS1876

SFP Controller with Dual LDD Interface

Table 02h, Register CAh–CBh: APC2 DAC

Table 02h, Register CCh–CDh: MOD1 DAC

FACTORY DEFAULT

0000h

READ ACCESS

PW2 or (PW1 and RWTBL2) or (PW1 and RTBL2)

WRITE ACCESS

(PW2 and APC2EN = 0) or (PW1 and RWTBL2 and APC2EN = 0)

A2h AND B2h MEMORY

Common A2h and B2h memory location

MEMORY TYPE

Volatile

CAh

0

0

0

0

0

0

2

9

2

8

CBh

2

7

2

6

2

5

2

4

2

3

2

2

2

1

2

0

BIT 7

BIT 0

The digital value used for APC2 DAC. It is the result of LUT6 plus APC2 OFFSET times 4 recalled from Table
06h (Registers F8h–FFh) at the adjusted memory address found in TINDEX. This register is updated at the end
of the temperature conversion.

APC2 DAC = LUT6 + APC2 OFFSET x 4

REFIN

APC2

V

V

APC2 DAC

1024

=

×

FACTORY DEFAULT

0000h

READ ACCESS

PW2 or (PW1 and RWTBL2) or (PW1 and RTBL2)

WRITE ACCESS

(PW2 and MOD1EN = 0) or (PW1 and RWTBL2 and MOD1EN = 0)

A2h AND B2h MEMORY

Common A2h and B2h memory location

MEMORY TYPE

Volatile

CCh

0

0

0

0

0

0

2

9

2

8

CDh

2

7

2

6

2

5

2

4

2

3

2

2

2

1

2

0

BIT 7

BIT 0

The digital value used for MOD1 DAC. It is the result of LUT4 plus MOD1 OFFSET times 4 recalled from Table
04h (Registers F8h–FFh) at the adjusted memory address found in TINDEX. This register is updated at the end
of the temperature conversion.

MOD1 DAC = LUT4 + MOD1 OFFSET x 4

REFIN

MOD1

V

V

MOD1 DAC

1024

=

Ч