82541ER 查看數據表（PDF） - Intel

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产品描述 (功能)

生产厂家

82541ER

82541ER Gigabit Ethernet Controller

Intel 

3.0

3.1

3.2

82541ER Gigabit Ethernet Controller

Signal Descriptions

Signal Type Definitions

The signals of the 82541ER controller are electrically defined as follows:

Name

I

O

TS

STS

OD

A

P

Definition

Input. Standard input only digital signal.

Output. Standard output only digital signal.

Tri-state. Bi-directional tri-state digital input/output signal.

Sustained Tri-state. An active low tri-state signal owned and driven by only one agent at a

time. The agent that drives an STS pin low must drive it high for at least one clock before letting

it float. A new agent cannot start driving an STS signal any sooner than one clock after the

previous owner tri-states it. A pullup is required to sustain the inactive state until another agent

drives it, and must be provided by the central resource.

Open Drain. Wired-OR with other agents.

The signaling agent asserts the OD signal, but the signal is returned to the inactive state by a

weak pull-up resistor. The pull-up resistor may require two or three clock periods to fully restore

the signal to the de-asserted state.

Analog. PHY analog data signal.

Power. Power connection, voltage reference, or other reference connection.

PCI Bus Interface Signals (56)

When the Reset signal (RST#) is asserted, the 82541ER will not drive any PCI output or bi-

directional pins.

7

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