EP80579 Datasheet, PDF (1345/1916 Pages) Intel Corporation – Intel® EP80579 Integrated Processor Product Line

Intel^® EP80579 Integrated Processor
37.4
Usage Model
The EP80579 implements three GbE controllers. In addition to the three controllers,
protocol translation gaskets and an MDIO interface are provided. Also, a multiplexor to
allow the three GbE controllers to share access to a common serial EEPROM is
implemented. A block diagram of these units is shown in Figure 37-2:
Figure 37-2. GbE Ethernet Complex
Core Power Well
GCU
IO Well
2.5V or 3.3V
MDIO 1 Pins
Auxiliary Power Well
RESET
PWR_OK
AUX_PWR_PRESENT
RESET
GbE 0
MII/GMII
ISOLATION_N
PME_WAKE
RCOMP
Logic
EEPROM
Arbiter
‘OR’ of all 3 PME_WAKE’s
MII / RMII
Translator
GMII / RGMII
Translator
Select
Micro-wire Interface
AUX_PWR_GOOD
SYS_PWR_OK
PME_WAKE
GbE 0
Pins
RESET
‘1’
PWR_OK
AUX_PWR_PRESENT
‘0’
RESET
GbE 1
MII/GMII
ISOLATION_N
PME_WAKE
MII / RMII
Translator
GMII / RGMII
Translator
Select
GbE 1
Pins
RESET
‘1’
PWR_OK
‘0’
AUX_PWR_PRESENT
RESET
GbE 2
MII/GMII
ISOLATION_N
PME_WAKE
MII / RMII
Translator
GMII / RGMII
Translator
Core Power Well
Select
GbE 2
Pins
IO Well
2.5V or
3.3V
August 2009
Order Number: 320066-003US
Intel^® EP80579 Integrated Processor Product Line Datasheet
1345