Datasheet

System Management Bus Interface
144 Intel
®
Itanium
®
Processor 9300 Series and 9500 Series Datasheet
6.2 SMBus Memory Component
6.2.1 Processor Information ROM (PIROM)
Table 6-1 maps the PIROM offsets to the field definitions, which are described in
Section 6.4.
Table 6-1. Processor Information ROM Data (Sheet 1 of 6)
Sec # Offset Field Name Data Type Description Example
General
0 00h Data Format Revision Hex Incremented with PIROM Table
revisions
Rev 1.6 = 0x10
1 01h EEPROM Size Hex Size in Bytes 128 bytes = 0080h; that
is,
02h[7:0] = 0x00
01h[7:0] = 0x80
2 02h
3 03h Processor Data Address Hex Byte pointer Pointer to the section of PIROM
containing Processor Production
Data
0x0F; 0x00 if not
present
4 04h Processor Core Address Hex Byte pointer Pointer to the section of PIROM
containing Processor Core Data
0x22; 0x00 if not
present
5 05h Processor Uncore
Address
Hex Byte pointer Pointer to the section of PIROM
containing Processor Uncore Data
0x2E; 0x00 if not
present
6 06h Processor Cache
Address
Hex Byte pointer Pointer to the section of PIROM
containing Processor Cache Data
0x46; 0x00 if not
present
7 07h Package Data Address Hex Byte pointer Pointer to the section of PIROM
containing Processor Package
Data
0x4F; 0x00 if not
present
8 08h Part Number Data
Address
Hex Byte pointer Pointer to the section of PIROM
containing Processor Part Number
Data
0x56; 0x00 if not
present
9 09h Thermal Reference Data
Address
Hex Byte pointer Pointer to the section of PIROM
containing Processor Thermal
Reference Data
0x6B; 0x00 if not
present
10 0Ah Feature Data Address Hex Byte pointer Pointer to the section of PIROM
containing Processor Features
Data
0x72; 0x00 if not
present
11 0Bh Other Data Address Hex Byte pointer Pointer to the section of PIROM
containing Processor “Other” Data
0x7D; 0x00 if not
present
12 0Ch RESERVED Hex Reserved for future use 0Ch = 0x00
13 0Dh 0Dh = 0x00
14 0Eh Checksum Hex Add up by byte and take 2's
complement
Processor
21 15h Sample/Production Hex Identifies sample parts separately
from production parts
0x01 = Production
0x00 = Sample
22 16h Voltage Regulator Type
Required
Hex Identifies Ararat type required 0x00 for Intel®
Itanium® Processor
9300 Series,
0x01 for Intel®
Itanium® Processor
9500 Series
23 17h VCCA 4 binary coded
decimal (bcd)
digits
Processor Analog Voltage Supply
in four 4-bit Hex digits (in mV)
1.800V = 1800
17h = 00
18h = 18
24 18h