Intel C2518 FH8065501516710 Data Sheet
Product codes
FH8065501516710
Volume 2—SMBus 2.0 Unit 0 - PCU—C2000 Product Family
SMBus Slave Interface
Intel
®
Atom™ Processor C2000 Product Family for Microserver
Datasheet, Vol. 2 of 3
September 2014
440
Order Number: 330061-002US
18.4
SMBus Slave Interface
The SoC does not implement a complete SMBus slave interface. Only the Host Notify
command is implemented to maintain specification compatibility.
18.4.1
Host Notify Command Format
Note:
shows the Host
Notify command format.
Table 18-7. Host Notify Command Format
Bit
Description
Driven By
Comment
1
Start
External Master
8:2
SMB Host Address – 7 bits
External Master
Always 0001_000
9
Write
External Master
Always 0
10
ACK (or NACK)
SoC
17:11
Device Address – 7 bits
External Master
18
Unused – Always 0
External Master
7-bit only address; this bit is inserted to complete
the byte
19
ACK
SoC
27:20
Data Byte Low – 8 bits
External Master
28
ACK
SoC
36:29
Data Byte High – 8 bits
External Master
37
ACK
SoC
38
Stop
External Master