317697-001 Ver la hoja de datos (PDF) - Intel
Número de pieza
componentes Descripción
Fabricante
317697-001 Datasheet PDF : 69 Pages
| |||
82575 Gigabit Ethernet Controller Datasheet
3.11
Serializer/Deserializer Signals
3.12
Note:
Symbol
Type
Name and Function
SRDSI_0_P
SRDSI_0_N
AI
SRDSI_1_P
SRDSI_1_N
SRDSO_0_P
SRDSO_0_N
AO
SRDSO_1_P
SRDSO_1_N
SRDS0_SIG_DET/
SRDS1_SIG_DET
I
SER_RCOMP
A
SFP0_I2C_CLK
O
SFP0_I2C_DATA
TS/
OD
SFP1_I2C_CLK
O
SFP1_I2C_DATA
TS/
OD
SERDES Receive Pairs A and B
These signals make the differential receive pair for the 1.25 GHz serial
interface. For serializer/deserializer operation, the inputs should be
coupled to ECL voltage levels. If the SERDES interface is not used,
these pins should not be connected.
SERDES Transmit Pairs A and B
These signals make the differential transmit pair for the 1.25 GHz
serial interface. For serializer/deserializer operation, the outputs drive
the LVPECL voltage levels. If the SERDES interface is not used, these
pins should not be connected.
Signal Detects A and B
These pins indicate whether the SERDES signals (connected to the
1.25 GHz serial interface) have been detected by the optical
transceivers. If the SERDES interface is not used with copper media,
these can be left with no connection (NC). If the SERDES interface is
not used with fiber media, the SIG_DET inputs should be tied high to
VCC.
SERDES Impedance Compensation. Connect the recommended
resistor (1.4K Ω) from this ball to ground.
Port 0 SFP I2C clock. Connects to Mod-Def1 input of SFP. Can also be
used as MDC pin.
Port 0 SFP I2C data. Connects to Mod-Def2 pin of SFP. Can also be
used as MDIO pin
Port 1 SFP I2C clock. Connects to Mod-Def1 input of SFP. Can also be
used as MDC pin.
Port 1 SFP I2C data. Connects to Mod-Def2 pin of SFP. Can also be
used as MDIO pin
Test Interface Signals
Pull-up resistors are needed on these signals as shown in the reference schematic.
Symbol
JTCK
JTDI
JTDO
JTMS
Type
Name and Function
I
JTAG Test Access Port Clock
I
JTAG Test Access Port Test Data In
OD JTAG Test Access Port Test Data Out
I
JTAG Test Access Port Mode Select
16
Share Link: 