Intel C2518 FH8065501516710 Data Sheet

Product codes

FH8065501516710

Intel

Atom™ Processor C2000 Product Family for Microserver

September 2014

Datasheet, Vol. 2 of 3

Order Number: 330061-002US

391

Volume 2—SMBus 2.0 Unit 2 - PECI—C2000 Product Family

PECI Proxy Commands

17.7.1

Ping()

Ping() is a required message for all PECI devices. This message is used to enumerate

devices or determine if a device has been removed, been powered-off, etc. A Ping()

sent to a device address always returns a non-zero Write FCS if the device at the

targeted address is able to respond.

Table 17-8

shows the Ping PECI Proxy Block Write

format and

Table 17-9 on page 392

shows the Ping PECI Proxy Block Read format.

Table 17-8. Ping - PECI Proxy Block Write

SMBus

Function

Value

Data

Source

Comment

Slave Address

(Write)

Write Address

SMBus

Command

0x4C

BMC

Command Code

PECI Mode

command code

0x62

Byte Count

Control Data

0x04

Byte 1

SMBUS-PECI

Handshake

Control

0x00

Byte 2

PECI Client

Address

PECI Command

0x30

Byte 3

PECI Write

Length

0x00

Ping() command has

no command code

• Write Length =

0x00

• Read Length =

0x00

Byte 4

PECI Read

Length

0x00