82574L データシートの表示（PDF） - Intel

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82574L

82574 GbE Controller

Intel 

82574 GbE Controller—Pin Interface

Table 7.

2.3.2

PCIe

Symbol

Lead #

PE_Rp

24

PE_Rn

23

PE_WAKE_N/

JTAG_TDO

16

PE_RST_N

17

Type

Op

Mode

Name and Function

A-in

O/d

In

Input

PCIe Serial Data Input

Serial differential input link in the PCIe interface running at

2.5 Gb/s. The embedded clock present in this input is

recovered along with the data.

Output

Wake

The 82574 drives this signal to zero when it detects a wake-

up event and either:

• The PME_en bit in PMCSR is 1b or

• The APME bit of the Wake Up Control (WUC) register is

1b.

JTAG TDO Output.

Input

Power and Clock Good Indication

The PE_RST_N signal indicates that both PCIe power and

clock are available.

NVM Port

Table 8.

NVM Port

Symbol

Lead #

NVM_SI

12

NVM_SO

14

NVM_SK

13

NVM_CS_N

15

Type

Op

Mode

Name and Function

Serial Data Output

Connect this lead to the input of the Non-Volatile Memory

T/s

Output (NVM).

Note: The NVM_SI port pin includes an internal pull-up

resistor.

Serial Data Input

T/s

Input Connect this lead to the output of the NVM.

Note: The NVM_SO port pin includes an internal pull-up

resistor.

Non-Volatile Memory Serial Clock

T/s

Output Note: The NVM_SK port pin includes an internal pull-up

resistor.

Non-Volatile Memory Chip Select Output

T/s

Output Note: The NVM_CS port pin includes an internal pull-up

resistor.

20

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