欢迎访问ic37.com |
会员登录 免费注册
发布采购

326769-002 参数 Datasheet PDF下载

326769-002图片预览
型号: 326769-002
PDF下载: 下载PDF文件 查看货源
内容描述: 移动第三代英特尔®科雷亚?? ¢处理器家族 [Mobile 3rd Generation Intel® Core™ Processor Family]
分类和应用:
文件页数/大小: 342 页 / 2513 K
品牌: INTEL [ INTEL ]
 浏览型号326769-002的Datasheet PDF文件第24页浏览型号326769-002的Datasheet PDF文件第25页浏览型号326769-002的Datasheet PDF文件第26页浏览型号326769-002的Datasheet PDF文件第27页浏览型号326769-002的Datasheet PDF文件第29页浏览型号326769-002的Datasheet PDF文件第30页浏览型号326769-002的Datasheet PDF文件第31页浏览型号326769-002的Datasheet PDF文件第32页  
Processor Configuration Registers  
Top of Upper Usable DRAM (TOUUD)  
The Top of Upper Usable Dram (TOUUD) register reflects the total amount of  
addressable DRAM. If remap is disabled, TOUUD will reflect TOM minus Intel  
Management Engine stolen size. If remap is enabled, then it will reflect the remap limit.  
Note:  
When there is more than 4 GB of DRAM and reclaim is enabled, the reclaim base will be  
the same as TOM minus Intel ME stolen memory size to the nearest 1 MB alignment  
(shown in the following case 2).  
Top of Low Usable DRAM (TOLUD)  
TOLUD register is restricted to 4 GB memory (A[31:20]), but the processor can support  
up to 32 GB, limited by DRAM pins. For physical memory greater than 4 GB, the TOUUD  
register helps identify the address range in between the 4 GB boundary and the top of  
physical memory. This identifies memory that can be directly accessed (including  
remap address calculation), which is useful for memory access indication and early  
path indication. TOLUD can be 1 MB aligned.  
TSEG_BASE  
The “TSEG_BASE” register reflects the total amount of low addressable DRAM, below  
TOLUD. BIOS will calculate and program this register; so, the system agent has  
knowledge of where (TOLUD) – (GFX stolen) – (GFX GTT stolen) – (TSEG) is located.  
I/O blocks use this minus DPR for upstream DRAM decode.  
2.3.4.1  
Memory Re-claim Background  
The following are examples of Memory Mapped I/O devices are typically located below  
4 GB:  
• High BIOS  
• TSEG  
• GFX stolen  
• GTT stolen  
• XAPIC  
• Local APIC  
• MSI Interrupts  
• Mbase/Mlimit  
• PMbase/PMlimit  
• Memory Mapped IO space that supports only 32B addressing  
The processor provides the capability to re-claim the physical memory overlapped by  
the Memory Mapped IO logical address space. The MCH re-maps physical memory from  
the Top of Low Memory (TOLUD) boundary up to the 4 GB boundary to an equivalent  
sized logical address range located just below the Intel Management Engine stolen  
memory.  
28  
Datasheet, Volume 2