Intel SE7525GP2 Product Specification - Page 55
Configuration and Initialization
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Intel® Server Boards SE7320SP2 and SE7525GP2 Functional Architecture 3.6.10 BIOS Flash An Intel® 3-volt Advanced+ Boot Block 28F320C3 Flash memory component is used as the BIOS flash device. The 28F320C3 is a high-performance 32-megabit memory component that provides 2048 K x 16 (4 MB) of BIOS and non-volatile storage space. The flash device is connected through the X-bus from the SIO. 3.7 Configuration and Initialization This section describes the initial programming environment including address maps for memory and I/O, techniques and considerations for programming ASIC registers, and hardware options configuration. 3.7.1 Memory Space At the highest level, the Intel® Xeon® processor address space is divided into four regions, as shown in the following figure. Each region contains sub-regions as described in following sections. Attributes can be independently assigned to regions and sub-regions using the server board registers. The Intel® E7320 and Intel® E7525 chipsets each supports 64 GB of host- addressable memory space and 64 KB+3 of host-addressable I/O space. The server boards support up to 8 GB of main memory for DDR-266 or DDR-333 configurations. Revision 4.0 43