Datasheet

Features

82 Dual-Core Intel

Xeon

Processor 7000 Series Datasheet

NOTES:

1. This is an 8-bit field. The device which sent the alert will respond to the ARA Packet with its address in the

seven most significant bits. The least significant bit is undefined and may return as a ‘1’ or ‘0’. See

Section 7.4.8 for details on the Thermal Sensor Device addressing.

2. The shaded bits are transmitted by the thermal sensor, and the bits that aren’t shaded are transmitted by the

SMBus host controller.

Table 7-6. Read Byte SMBus Packet

Slave

Address

Write Ack

Command

Code

Ack S

Slave

Address

Read Ack Data /// P

17-bits 0

18-bits117-bits11 8-bits 1 1

Table 7-7. Send Byte SMBus Packet

S Slave Address Write Ack Command Code Ack P

17-bits 0

18-bits11

Table 7-8. Receive Byte SMBus Packet

S Slave Address Read Ack Data /// P

17-bits 1

1 8-bits 1 1

Table 7-9. ARA SMBus Packet

S ARA Read Ack Address /// P

1 0001 100 1

1 Device Address