Intel 9560 CM8063101049716 Data Sheet

149

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 kΩ) 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.

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

125

7Dh

RESERVED

Hex

Reserved for future use

7Dh = 0x00

7Eh = 0x00
7Fh = 0x00

126

7Eh

127

7Fh