8.3.1.13. Transceiver
This module contains the L23 port transceiver classes that deal with access to the register interfaces of the transceiver on a port.
- class PX_I2C_CONFIG[source]
Bases:
objectSet the get the access speed on a transceiver I2C access in the unit of KHz. Default to 100. When the transceiver is plugged out and in again, the speed will be reset to the default value 100. The speed has a minimum and a maximum, which can be obtained from P_CAPABILITIES. The I2C speed configuration will not be included in the port configuration file (.xpc). When you load a port configuration to a port, the transceiver I2C access speed will be reset to default 100.
- class GetDataAttr[source]
Bases:
ResponseBodyStruct- frequency
integer, frequency in kHz, default is 100.
- class SetDataAttr[source]
Bases:
RequestBodyStruct- frequency
integer, frequency in kHz, default is 100.
- class PX_MII[source]
Bases:
objectProvides access to the register interface supported by the media-independent interface (MII) transceiver. It is possible to both read and write register values.
- class GetDataAttr[source]
Bases:
ResponseBodyStruct- value
2 hex bytes, register value of the transceiver
- class SetDataAttr[source]
Bases:
RequestBodyStruct- value
2 hex bytes, register value of the transceiver
- class PX_RW[source]
Bases:
objectProvides read and write access to the register interface supported by the port transceiver. It is possible to both read and write register values.
- class GetDataAttr[source]
Bases:
ResponseBodyStruct- value
4 hex bytes, register value of the port transceiver
- class SetDataAttr[source]
Bases:
RequestBodyStruct- value
4 hex bytes, register value of the port transceiver
- class PX_RW_SEQ[source]
Bases:
objectI2C 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.
<_byte_xcount> number of bytes will be read or written in one I2C transaction
<_page_xindex>: the transceiver page address, integer, 0x00 - 0xFF (0-255).
<_register_xaddress>: the address within the page, integer, 0x00 - 0xFF (0-255).
If <_register_xaddress> < 128, the page index <_page_xindex> is ignored by the server. The server will read from page 0 without writing 0 into byte 127.
If <_register_xaddress> >=128, the page index <_page_xindex> will be written into byte 127.
- class GetDataAttr[source]
Bases:
ResponseBodyStruct- value
the bytes to be read or written in one I2C transaction. The number of bytes in the
<value>equals<byte_count>.
- class SetDataAttr[source]
Bases:
RequestBodyStruct- value
the bytes to be read or written in one I2C transaction. The number of bytes in the
<value>equals<byte_count>.
- class PX_RW_SEQ_BANK[source]
Bases:
objectI2C 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, 0x00 - 0xFF (0-255).
<_page_xindex>: the transceiver page address, integer, 0x00 - 0xFF (0-255).
<_register_xaddress>: the address within the page, integer, 0x00 - 0xFF (0-255).
<_byte_xcount> number of bytes will be read or written in one I2C transaction
If <_register_xaddress> < 128, the page index <page> and the bank index <_bank_xindex> is ignored by the server. The server will read from page 0 without writing 0 into byte 127.
If <_register_xaddress> >=128, the page index <page> will be written into byte 127, and the bank index <_bank_xindex> will be written into byte 126.
- class GetDataAttr[source]
Bases:
ResponseBodyStruct- value
the bytes to be read or written in one I2C transaction. The number of bytes in the
<value>equals<byte_count>.
- class SetDataAttr[source]
Bases:
RequestBodyStruct- value
the bytes to be read or written in one I2C transaction. The number of bytes in the
<value>equals<byte_count>.
- class PX_TEMPERATURE[source]
Bases:
objectTransceiver temperature in degrees Celsius.
- class GetDataAttr[source]
Bases:
ResponseBodyStruct- fractional_part
byte, 1/256th of a degree Celsius after the decimal digit.
- integral_part
byte, temperature value before the decimal digit.