LU82551IT INTEL [Intel Corporation], LU82551IT Datasheet - Page 21
LU82551IT
Manufacturer Part Number
LU82551IT
Description
Fast Ethernet PCI Controller
Manufacturer
INTEL [Intel Corporation]
Datasheet
1.LU82551IT.pdf
(102 pages)
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5.0
5.1
5.1.1
Datasheet
Table 10. Initialization Effects
Media Access Control Functional Description
Device Initialization
The 82551IT has six sources for initialization. They are listed according to their precedence:
Initialization Effects
The following table lists the effect of each of the different initialization sources on major portions
of the 82551IT. 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 PCI RST# but not necessarily by the selective reset.
EEPROM read
and initialization
Loadable
microcode
decoded/reset
MAC
configuration
reset and
multicast hash
Memory
pointers and
mircomachine
state reset
PCI
Configuration
register reset
PHY
configuration
reset
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)
Internal
POR
?
?
?
?
?
?
ALTRST#
?
?
?
?
?
?
RST#
?
?
?
?
?
?
ISOLATE#
--
?
?
?
?
?
Networking Silicon — 82551IT
Transition
D3 to D0
--
--
?
?
?
?
Software
Reset
--
--
--
?
?
?
Selective
Reset
--
--
--
--
--
?
15
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