8.2.4.4.4. Transceiver

8.2.4.4.4.1. Status

Get various tcvr status information. RX loss status of the individual RX optical lanes (only 4 lanes are supported currently).

Corresponding low-level API class: P_TCVRSTATUS

# Transceiver Status
resp = await port.tcvr_status.get()
resp.rx_loss_lane_0
resp.rx_loss_lane_1
resp.rx_loss_lane_2
resp.rx_loss_lane_3

8.2.4.4.4.2. Read & Write

Provides read and write access to the register interface supported by the port transceiver. It is possible to both read and write register values.

Corresponding low-level API class: PX_RW

# Transceiver Read & Write
await port.transceiver.access_rw(page_address=0, register_address=0).set(value=Hex("FF"))

resp = await port.transceiver.access_rw(page_address=0, register_address=0).get()
resp.value

8.2.4.4.4.3. Sequential Read & Write

I2C sequential access to a transceiver’s register. When invoked, the <byte_count> number of bytes will be read or written in one I2C transaction, in which the <value> is read or written with only a single register address setup. A subsequent invocation will perform a second I2C transaction in the same manner.

<_page_xindex>: the transceiver page address, integer, 0-255. <_register_xaddress>: the address within the page, integer, 0-255.

Corresponding low-level API class: PX_RW_SEQ

# Transceiver Sequential Read & Write
await port.transceiver.access_rw_seq(page_address=0, register_address=0, byte_count=4).set(value=Hex("00FF00FF"))

resp = await port.transceiver.access_rw_seq(page_address=0, register_address=0, byte_count=4).get()
resp.value

8.2.4.4.4.4. Sequential Read & Write (Banked)

I2C sequential access to a transceiver’s register. When invoked, the <byte_count> number of bytes will be read or written in one I2C transaction, in which the <value> is read or written with only a single register address setup. A subsequent invocation will perform a second I2C transaction in the same manner.

<bank_xindex>: the bank address, integer, 0-255. <_page_xindex>: the transceiver page address, integer, 0-255. <_register_xaddress>: the address within the page, integer, 0-255.

Corresponding low-level API class: PX_RW_SEQ_BANK

# Transceiver Sequential Read & Write (banked)
await port.transceiver.access_rw_seq_bank(bank_address=1, page_address=0x9F, register_address=200, byte_count=1).set(value=Hex("00"))

resp = await port.transceiver.access_rw_seq_bank(bank_address=1, page_address=0x9F, register_address=200, byte_count=1).get()
resp.value

8.2.4.4.4.5. MII

Provides access to the register interface supported by the media-independent interface (MII) transceiver. It is possible to both read and write register values.

Corresponding low-level API class: PX_MII

# Transceiver MII
await port.transceiver.access_mii(register_address=0).set(value=Hex("00"))

resp = await port.transceiver.access_mii(register_address=0).get()
resp.value

8.2.4.4.4.6. Temperature

Transceiver temperature in degrees Celsius.

Corresponding low-level API class: PX_TEMPERATURE

# Transceiver Temperature
resp = await port.transceiver.access_temperature().get()
resp.integral_part
resp.fractional_part

8.2.4.4.4.7. RX Laser Power

Reading of the optical power level of the received signal. There is one value for each laser/wavelength, and the number of these depends on the kind of CFP transceiver used. The list is empty if the CFP transceiver does not support optical power read-out.

Corresponding low-level API class: PP_RXLASERPOWER

# Transceiver RX Laser Power
resp = await port.pcs_pma.transceiver.rx_laser_power.get()
resp.nanowatts

8.2.4.4.4.8. TX Laser Power

Reading of the optical power level of the transmission signal. There is one value for each laser/wavelength, and the number of these depends on the kind of CFP transceiver used. The list is empty if the CFP transceiver does not support optical power read-out.

Corresponding low-level API class: PP_TXLASERPOWER

# Transceiver TX Laser Power
resp = await port.pcs_pma.transceiver.tx_laser_power.get()
resp.nanowatts