Intel
®
Itanium
®
Processor 9300 Series and 9500 Series Datasheet
149
System Management Bus Interface
6.2.2
Scratch EEPROM
Intel
®
Itanium
®
Processor 9300 Series and Intel
®
Itanium
®
Processor 9500 Series
support a Scratch EEPROM section, which may be used for other data at the system
vendor’s discretion. The data in this EEPROM, once programmed, can be write-
protected by asserting the active-high SM_WP signal. This signal has a weak pull-down
(10 k
Ω
) to allow the EEPROM to be programmed in systems with no implementation of
this signal. The Scratch EEPROM resides in the upper half of the memory component
(addresses 80 - FFh). The lower half comprises the Processor Information ROM
(addresses 00 - 7Fh), which is permanently write-protected.
Features
114
72h
Processor Core Feature
Flags
RESERVED
(Intel® Itanium®
Processor 9500 Series)
8 digit Hex
number
From CPUID
Reserved for future use (Intel®
Itanium® Processor 9500 Series)
Flag = 0x4387FBFF
72h = 0xFF
73h = 0xFB
74h = 0x87
75h = 0x43
(Intel® Itanium®
Processor 9300 Series)
72h = 0x00
73h = 0x00
74h = 0x00
75h = 0x00
(Intel® Itanium®
Processor 9500 Series)
115
73h
116
74h
117
75h
118
76h
RESERVED
Hex
Reserved for future use
76h = 0x00
77h = 0x00
119
77h
120
78h
Package Feature Flags
Hex
Bit[7:4] reserved
Bit[3] = THERMALERT_N
threshold values present
Bit[2] = SCRATCH EEPROM
present
Bit[1] = Core VID present
Bit[0] reserved
where a 1 indicates valid data
Flag = 0x000E
78h = 0x0E
79h = 0x00
121
79h
122
7Ah
RESERVED
Hex
Reserved for future use
7Ah = 0x00
123
7Bh
Number of Devices in
TAP Chain
Hex
Bits [7:4] Number Devices in
processor TAP chain
Bits [3:0] Reserved
5 devices for Intel®
Itanium® Processor
9300 Series = 0x50
9 devices for Intel®
Itanium® Processor
9500 Series = 0x90
124
7Ch
Checksum
Hex
Add up by byte and take 2's
complement
Other
125
7Dh
RESERVED
Hex
Reserved for future use
7Dh = 0x00
7Eh = 0x00
7Fh = 0x00
126
7Eh
127
7Fh
Table 6-1.
Processor Information ROM Data (Sheet 6 of 6)
Sec #
Offset
Field Name
Data Type
Description
Example
Summary of Contents for BX80569Q9550 - Core 2 Quad 2.83 GHz Processor
Page 10: ...Introduction 10 Intel Itanium Processor 9300 Series and 9500 Series Datasheet ...
Page 22: ...Introduction 22 Intel Itanium Processor 9300 Series and 9500 Series Datasheet ...
Page 72: ...Electrical Specifications 72 Intel Itanium Processor 9300 Series and 9500 Series Datasheet ...
Page 118: ...Pin Listing 118 Intel Itanium Processor 9300 Series and 9500 Series Datasheet ...
Page 132: ...Mechanical Specifications 132 Intel Itanium Processor 9300 Series and 9500 Series Datasheet ...
Page 142: ...Thermal Specifications 142 Intel Itanium Processor 9300 Series and 9500 Series Datasheet ...
Page 170: ...170 Intel Itanium Processor 9300 Series and 9500 Series Datasheet ...