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317607-001 参数 Datasheet PDF下载

317607-001图片预览
型号: 317607-001
PDF下载: 下载PDF文件 查看货源
内容描述: Express芯片组 [Express Chipset]
分类和应用:
文件页数/大小: 351 页 / 2481 K
品牌: INTEL [ INTEL ]
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Integrated Graphics Device Registers (D2:F0,F1)  
8.1.9  
HDR2—Header Type  
B/D/F/Type:  
Address Offset:  
Default Value:  
Access:  
0/2/0/PCI  
0Eh  
80h  
RO  
8 bits  
Size:  
This register contains the Header Type of the IGD.  
Bit  
Access &  
Default  
Description  
7
RO  
1b  
Multi Function Status (MFUNC): Indicates if the device is a Multi-  
Function Device. The Value of this register is determined by Device 0,  
offset 54h, DEVEN[4]. If Device 0 DEVEN[4] is set, the MFUNC bit is  
also set.  
6:0  
RO  
00h  
Header Code (H): This is a 7-bit value that indicates the Header  
Code for the IGD. This code has the value 00h, indicating a type 0  
configuration space format.  
8.1.10  
GMADR—Graphics Memory Range Address  
B/D/F/Type:  
Address Offset:  
Default Value:  
Access:  
0/2/0/PCI  
18–1Fh  
00000008h  
RW, RO, RW/L  
64 bits  
Size:  
IGD graphics memory base address is specified in this register.  
Bit  
Access &  
Default  
Description  
63:36  
35:29  
RO  
Reserved  
RW  
Memory Base Address (MBA): Set by the OS, these bits correspond  
000b  
to address signals 35:29.  
28  
RW/L  
0b  
512 MB Address Mask (512ADMSK): This Bit is either part of the  
Memory Base Address (R/W) or part of the Address Mask (RO),  
depending on the value of MSAC[1:0]. See MSAC (D2:F0, offset 62h)  
for details.  
27  
RW/L  
0b  
256 MB Address Mask (256ADMSK): This bit is either part of the  
Memory Base Address (R/W) or part of the Address Mask (RO),  
depending on the value of MSAC[1:0]. See MSAC (D2:F0, offset 62h)  
for details.  
26:4  
3
RO  
000000h  
Address Mask (ADM): Hardwired to 0s to indicate at least 128 MB  
address range.  
RO  
1b  
Prefetchable Memory (PREFMEM): Hardwired to 1 to enable  
prefetching.  
2:1  
RO  
00b  
Memory Type (MEMTYP):  
0 = 32-bit address.  
1 = 64-bit address  
0
RO  
0b  
Memory/IO Space (MIOS): Hardwired to 0 to indicate memory  
space.  
Datasheet  
231