GD82551QM datasheet(21/120 Pages) INTEL

tên linh kiện	GD82551QM

Giải thích chi tiết về linh kiện	Fast Ethernet Multifunction PCI/CardBus Controller

PDF	120 Pages

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nhà sản xuất	INTEL [Intel Corporation]

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Networking Silicon — 82551QM

Datasheet

5.0

Media Access Control Functional Description

5.1

Device Initialization

The 82551QM has six sources for initialization. They are listed according to their precedence:

1. Internal Power-on Reset (POR)

2. ALTRST# pin

3. RST# pin

4. ISOLATE# pin

5. Software Reset (Software Command)

6. Selective Reset (Software Command)

5.1.1

Initialization Effects

The following table lists the effect of each of the different initialization sources on major portions

of the 82551QM. The initialization sources are listed in order of precedence. For example, any

resource that is initialized by the software reset is also initialized by the D3 to D0 transition and

ALTRST# and RST# but not necessarily by the selective reset.

Table 11. Initialization Effects

Internal

POR

ALTRST#

RST#

ISOLATE#

D3 to D0

Transition

Software

Reset

Selective

Reset

EEPROM read

and initialization

Loadable

microcode

decoded/reset

MAC

configuration

reset and

multicast hash

Memory

pointers and

mircomachine

state reset

???

PCI

Configuration

PHY

configuration

reset

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