參數(shù)資料
型號(hào): MT8LLN22NCNE
元件分類: 總線控制器
英文描述: PCI BUS CONTROLLER, PBGA316
封裝: 27 X 27 MM, PLASTIC, BGA-316
文件頁數(shù): 20/145頁
文件大小: 2285K
代理商: MT8LLN22NCNE
Coppertail Product Specification
MT8LLN22NCNE.fm – Rev. 1, Pub. 2/02
116
2002, Micron Technology Inc.
PRELIMINARY
MT8LLN22NCNE
COPPERTAIL
SMB ACPI Status
SMB Received Byte Count
SMB Current Byte Count (SMB_CUR_BCNT)
Memory Map
The I/O controller has a fixed memory address
range that is used by the I/O APIC as shown in Table
ADDRESS: SMB_BASE + 2Ch
SYMBOL: SMB_STS
BITS
DESCRIPTION
PROPERTIES
RESET
7
SMB Transfer Done Status Bit. When set, the SMB transfer is complete.
Writing a zero to this field clears the status. Writing a one has no effect.
R/W
0
6
Micron Reserved.
R/W
0
5Reserved.
R/W
0
4:0
SMB Error Code of the current transfer as defined by the ACPI specifica-
tion.
00000: SMBus OK.
00111: SMBus Unknown Failure.
10000: SMBus Device Address Not Acknowledged.
10001: SMBus Device Error Detected.
10010: SMBus Device Command Access Denied.
10011: SMBus Unknown Error.
11000: SMBus Timeout
11001: SMBus Host Unsupported Protocol.
11010: SMBus Busy.
When error code 10001 is returned, additional status information is
available in register 2Bh.
R/W
0
ADDRESS: SMB_BASE + 2Dh
SYMBOL: SMB_REC_BCNT
BITS
DESCRIPTION
PROPERTIES
RESET
7:0
SMB Block Read Protocol Received Byte Count. This Byte Count is the
byte count received from the SMB Slave during the SMB Block Read Pro-
tocol.
R/O
FFh
ADDRESS: SMB_BASE + 2Eh
SYMBOL: SMB_CUR_BCNT
BITS
DESCRIPTION
PROPERTIES
RESET
7:0
SMB Current Byte Count.
R/O
FFh
Table 18
I/O Controller Fixed Memory Register Set
ADDRESS
DESCRIPTION
UNIT
FEC0_0000h- FEC0_0043h
I/O APIC Memory
APIC
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