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參數(shù)資料
| 型號： | BX805499040 |
| 廠商： | INTEL CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 64-BIT, 1600 MHz, MICROPROCESSOR, CPGA611 |
| 封裝： | PGA-611 |
| 文件頁數(shù)： | 90/108頁 |
| 文件大?。?/td> | 2315K |
| 代理商： | BX805499040 |
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82
Dual-Core Intel Itanium Processor 9000 Series Datasheet
System Management Feature Specifications
6.2
Processor Information ROM
An electrically programmed read-only memory (ROM) provides information about the
processor. The checksum bits for each category provide error correction and serve as a
mechanism to check whether data is corrupted or not. This information is permanently
write-protected. Table 6-4 shows the data fields and formats provided in the memory.
Note:
The data, in byte format, is written and read serially with the most significant bit first.
Table 6-3.
EEPROM SMBus Addressing on the Dual-Core Intel Itanium 2 Processor
9000 Series
Address
(Hex)
Upper
Address1
Notes:
1. Though this addressing scheme is targeted for up to four-way MP systems, more processors can be supported
by using a multiplexed (or separate) SMBus implementation.
Processor Select
Memory
Device
Select
Read/
Write
Device Addressed
Bits 7–4
(SMA1)
Bit 3
(SMA0)
Bit 2
Bit 1
Bit 0
A0h/A1h
1010
0
X
Scratch EEPROM 1
A2h/A3h
1010
0
1
X
Processor Information ROM 1
A4h/A5h
1010
0
1
0
X
Scratch EEPROM 2
A6h/A7h
1010
0
1
X
Processor Information ROM 2
A8h/A9h
1010
1
0
X
Scratch EEPROM 3
AAh/ABh
1010
1
0
1
X
Processor Information ROM 3
ACh/ADh
1010
1
0
X
Scratch EEPROM 4
AEh/AFh
1010
1
X
Processor Information ROM 4
Table 6-4.
Processor Information ROM Format (Sheet 1 of 3)
Offset/
Section
# of
Bits
Function
Notes
Examples
Header
00h
8
Data Format Revision
Two 4-bit hex digits
Start with 00h
01h
16
EEPROM Size
Size in bytes (MSB first)
Use a decimal to hex
transfer; 128 bytes =
0080h:
02h[7:4] = 0000
02h[3:0] = 0000
01h[7:4] = 1000
01h[3:0] = 0000
03h
8
Processor Data Address
Byte pointer, 00h if not present
0Eh
04h
8
Processor Core Address
Byte pointer, 00h if not present
17h
05h
8
Processor Cache Address
Byte pointer, 00h if not present
28h
06h
8
Processor Data Address
Byte pointer, 00h if not present
37h
07h
8
Part Number Data Address
Byte pointer, 00h if not present
3Eh
08h
8
Thermal Reference Data
Address
Byte pointer, 00h if not present
63h
09h
8
Feature Data Address
Byte pointer, 00h if not present
67h
0Ah
8
Other Data Address
Byte pointer, 00h if not present
7Ah
0Bh
16
Reserved
Reserved for future use
0000h
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