MIC3000_07 datasheet(46/68 Pages) MICREL

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MIC3000

Micrel

M9999-101204

October 2004

Received Optical Power MSB (RXOPh)

D[7]

D[6]

D[5]

D[4]

D[3]

D[2]

D[1]

D[0]

read-only

Default Value

0000 0000b = 00h (0mW)(6)

Serial Address

A2h = 1010001b

Byte Address

104 = 68h

Each LSB represents 25.6

µW. This register is to be used in conjunction with RXOPl to yield a sixteen-bit value. The

values in RXOPh:RXOPl are in an unsigned binary format. The value in this register is uncalibrated. The host should

process the results using the scale factor and offset provided. See the External Calibration section.

Received Optical Power LSB (RXOPl)

D[7]

D[6]

D[5]

D[4]

D[3]

D[2]

D[1]

D[0]

read-only

Default Value

0000 0000b = 00h (0mW)(6)

Serial Address

A2h = 1010001b

Byte Address

105 = 69h

Each LSB represents 0.1

µW. This register is to be used in conjunction with RXOPh to yield a sixteen-bit value. The

values in RXOPh:RXOPl are in an unsigned binary format. The value in this register is uncalibrated. The host should

process the results using the coefficients provided. See the External Calibration section. In the MIC3000, this register

will always return zero. This register is provided for compliance with SFF-8472. It is not used by the MIC3000 when

doing threshold comparisons and setting alarm or warning bits.

Control and Status (CNTRL)

D[7]

D[6]

D[5]

D[4]

D[3]

D[2]

D[1]

D[0]

TXDIS

STXDIS

reserved

RSEL

SRSEL

XFLT

LOS

POR

read only

read/write

read only

Default Value

0000 0000b = 00h

Serial Address

A2h = 1010001b

Byte Address

110 = 6Eh

Bit(s)

Function

Operation

D[7]

TXDIS

Reflects the state of the TXDISABLE pin

1 = disabled, 0 = enabled, read only.

D[6]

STXDIS

Soft transmit disable

1 = disabled; 0 = enabled.

D[5]

Reserved

Reserved - always write as zero.

D[4]

RSEL

Reflects the state of the RSEL pin

1 = high; 0 = low.

D[3]

SRSEL

Soft rate select

1 = high (2Gbps); 0 = low (1Gbps).

D[2]

TXFLT

Reflects the state of the TXFAULT pin

1 = high (fault); 0 = low (no fault).

D[1]

LOS

Loss of signal. Reflects the state of the LOS pin

1 = high (loss of signal); 0 = low (no loss of signal).

D[0]

POR

MIC3000 power-on status

0 = POR complete, analog data ready;

1 = POR in progress.

Notes:

6. RXOPh will contain measured data after one A/D conversion cycle.

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