Smbus Address; Intel ® Ep80579 Ia-32 Core Frequency Selection; Smbus Connectivity - Intel EP80579 User Manual

Technical Reference—Intel
Table 10.
4.3
Table 11.
October 2008
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®
EP80579 Integrated Processor with Intel
®
Intel EP80579 IA-32 core Frequency Selection
IA-32 core Desired
Maximum IA-32 core
Operating Operating
Frequency Frequency
(MHz) (MHz)
600 600
1066 1066
1200 1066
1200 1200
1. "Short 2-3" means to use a 2 pin jumper to shunt pins 2-3 together
2. "Short 1-2-3" means to use a jumper to shunt pins 1-2-3 together

SMBus Address

Table 11 shows the SMBus device addresses on the Intel
Board.

SMBus Connectivity

Devices
Primary from Intel
SIO
EP80579 Processor - IICH slave device
EP80579 Processor - IMCH slave device
DB800
CK410
ITP
DIMM 0
DIMM 1
HSS Mezzanine 0
HSS Mezzanine 1
HSS Mezzanine 2
®
QuickAssist Technology
J7F2 Jumper J7G6 Jumper
Setting Setting
(V_SEL in (BSEL in
Table 13) Table 13)
1 1
Short 2-3 Short 2-3
1 1
Short 2-3 Short 2-3
2 1
Short 1-2-3 Short 2-3
1 1
Short 2-3 Short 2-3
Address
®
EP80579
0x5C
0x44
SMBus A
0x60
0xDC
0xD2
Master
SMBus B
0xA4
0xA6
SMBus C
Determined by card
Determined by card
Determined by card
Comments
Requires a SKU with a 600 MHz IA-
32 core frequency
Allows 1200 MHz IA-32 core to run
at 1066 MHz
®
EP80579 Development
Power
Rail
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
Development Kit User's Guide
Order Number: 320067-002US
29