Intel
ยฎ
EP80579 Integrated Processor Product Line May 2010
Order Number: 320068-005US 183
System Management Bus (SMBus) InterfaceโIntel
ยฎ
EP80579 Integrated Processor Product
Line
EP80579โs SMBus has many features for system management. The following sections
show an example implementation of system management portions of EP80579 in the
Development Board. The system platform may use a BMC on a separate system
management card, although this is not part of the Development Board implementation.
This card is used for enabling and validating multiple system management vendors.
Intel highly recommends an embedded solution with the BMC of choice. Any controller
can serve this function. This section provides an example of what was implemented in
the Development Board. The example below is one of the possible system management
solutions for the EP80579.
Figure 121. Development Board System Management - SMBus Block Diagram
EP80579
SIO Addr 0xD8
IICH
SDA
SCLK
SDA1
SCLK 1
SDA2
SCLK2
VSBY3_3
PCA9515
SMBus A Repeat er
PCA9515
SMBus B Repeater
PCA9515
SMBus C Repeater
EP80579 IMCH
Addr 0x60
CK41 0
Addr 0XD2
DB80 0
Addr 0xDC
ITP
Master
DIMM_0
Addr 0xA4
DIMM_1
Addr 0xA6
Mezzaine 0
Addr Determined by Card
Mezzaine 1
Addr Determined by Card
Mezzaine 2
Addr Determined by Card
Mezzaine 3
Addr Determined by Card
LEB Connector
Addr Determined by Card
MEZZ_SMB*
DIMM_SMB*
MCH_SMB*
VSBY_ SMB*
VCC3VCC3 VCC3
SMBus header*
Note:
SMBus header i s a 1x3 f or header 1: DATA 2:GND 3:CLK
* i n Netnames represents CLK and DAT
SMLi nk[0] = CLK and SMLink[ 1 ] = DAT
SMBSCL and SMBSDA fr om IMCH
SMBus header C*SMBus header B*
SMBus header A*
Board I D
TPM is not connected
to SMBus
SMBus header SIO1*
VSBY3_ 3
PCI Exp x8 Conn
(Slot #1)
PCI Exp x4 Conn
(Slot #2)
PCI Exp x4 Conn
(Slot #3)
PCI Exp x4 Conn
(Slot #4)
PCI Exp x4 Conn
(Slot #5)
VSBY3_ 3
SMBus header SIO2*
EP80579
SM Li nk
Addr 0x44
SMBus header
1 Data
2 Ground
3 Cl ock
0- ohm
SIO2_SMB*
P
C
I
E
_
S
M
B
*
0- ohm empt y
0- ohm
VSBY_ SMB*
LAN control ler
0- ohm empt y
0- ohm
SIO1_SMB*
S
I
O
1
_
I
D
_
S
M
B
*
SMLi nk*
SMBus Bl ock Di agram
EN EN EN
GPO1 9 GPO20
GPO2 1
Default Disable
Defaul t Enable
Def aul t Di sabl e