|
| F i n i s a r | |||||
| Real Time Diagnostic Registers |
|
|
|
| ||
|
| TABLE 3.17: A/D Values and Status Bits (2 Wire Address A2h) | |||||
|
|
|
|
|
|
|
|
| Byte | Bit | Name | Description |
|
|
|
|
|
|
|
|
|
|
|
| Converted analog values. Calibrated 16 bit data. |
|
|
| |||
| 96 | All | Temperature MSB | Internally measured module temperature. |
|
| |
| 97 | All | Temperature LSB |
|
|
|
|
| 98 | All | Vcc MSB | Internally measured supply voltage in transceiver. |
| ||
| 99 | All | Vcc LSB |
|
|
|
|
| 100 | All | TX Bias MSB | Internally measured TX Bias Current. |
|
|
|
| 101 | All | TX Bias LSB |
|
|
|
|
| 102 | All | TX Power MSB | Measured TX output power. |
|
|
|
| 103 | All | TX Power LSB |
|
|
|
|
| 104 | All | RX Power MSB | Measured RX input power. |
|
|
|
| 105 | All | RX Power LSB |
|
|
|
|
| 106 | All | Reserved MSB | Reserved for 1st future definition of digitized analog input |
| ||
| 107 | All | Reserved LSB | Reserved for 1st future definition of digitized analog input |
| ||
| 108 | All | Reserved MSB | Reserved for 2nd future definition of digitized analog input |
| ||
| 109 | All | Reserved LSB | Reserved for 2nd future definition of digitized analog input |
| ||
|
|
|
|
|
| ||
| Optional Status/Control Bits |
|
|
|
| ||
| 110 | 7 | TX Disable State | Digital state of the TX Disable Input | Pin. | Updated within |
|
|
|
|
| 100msec of change on pin. This function is implemented in |
| ||
|
|
|
| all Finisar transceivers with digital diagnostic capability. |
| ||
| 110 | 6 | Soft TX Disable | Read/write bit that allows software disable of laser. Writing |
| ||
|
|
|
| ‘1’ disables laser. Turn on/off time is 100 msec max from |
| ||
|
|
|
| acknowledgement of serial byte transmission. This bit is |
| ||
|
|
|
| “OR”d with the hard TX_DISABLE pin value. Note, per SFP |
| ||
|
|
|
| MSA TX_DISABLE pin is default enabled unless pulled low |
| ||
|
|
|
| by hardware. If Soft TX Disable is not implemented, the |
| ||
|
|
|
| transceiver ignores the value of this bit. Default power up |
| ||
|
|
|
| value is 0. This function is not implemented in Finisar |
| ||
|
|
|
| transceivers |
|
|
|
| 110 | 5 | Reserved |
|
|
|
|
| 110 | 4 | RX Rate Select State | Digital state of the SFP RX Rate Select Input Pin. Updated |
| ||
|
|
|
| within 100msec of change on pin. This function is not |
| ||
|
|
|
| implemented in Finisar transceivers. |
|
|
|
| 110 | 3 | Soft RX Rate Select | Read/write bit that allows software RX rate select. Writing ‘1’ |
| ||
|
|
|
| selects full bandwidth operation. This bit is “OR’d with the |
| ||
|
|
|
| hard RX RATE_SELECT pin value. | Enable/disable time is |
| |
|
|
|
| 100msec max from acknowledgement of serial byte |
| ||
|
|
|
| transmission. Soft RX rate select does not meet the |
| ||
|
|
|
| autonegotiation requirements specified in |
| ||
|
|
|
| power up is zero. If Soft RX Rate Select is not implemented, |
| ||
|
|
|
| the transceiver ignores the value of this bit. This function is |
| ||
|
|
|
| not implemented in Finisar transceivers. |
|
| |
| 110 | 2 | TX Fault | Digital state of the TX Fault Output | Pin. | Updated within |
|
|
|
|
| 100msec of change on pin. This function is not implemented |
| ||
|
|
|
| in Finisar transceivers. |
|
|
|
9/26/02 Revision D | Page 24 |
