 |
数据搜索系统，热门电子元器件搜索 |
|
|
数据搜索系统，热门电子元器件搜索 |
|
82845MP Datasheet(数据表) 5 Page - Intel Corporation |
|
||||||||||||||||||||||||||||||
82845MP Datasheet(HTML) 5 Page - Intel Corporation |
|
|
5 page 
Intel ® 82845MP/82845MZ Chipset-Mobile (MCH-M) 250687-002 Datasheet 5 R 3.8.17. MBASE1 – Memory Base Address Register – Device #1 ........................... 96 3.8.18. MLIMIT1 – Memory Limit Address Register – Device #1............................ 97 3.8.19. PMBASE1 – Prefetchable Memory Base Address Register – Device #1 ... 98 3.8.20. PMLIMIT1 – Prefetchable Memory Limit Address Register – Device #1 .... 99 3.8.21. BCTRL1 – PCI-PCI Bridge Control Register – Device #1......................... 100 3.8.22. ERRCMD1 – Error Command Register – Device #1 ................................ 101 3.8.23. DWTMC – DRAM Write Thermal Management Control ........................... 102 3.8.24. DRTMC – DRAM Read Thermal Management Control ............................ 104 4. System Address Map ............................................................................................................... 105 4.1. Memory Address Ranges............................................................................................ 105 4.1.1. VGA and MDA Memory Space.................................................................. 106 4.1.2. PAM Memory Spaces................................................................................ 107 4.1.3. ISA Hole Memory Space ........................................................................... 108 4.1.4. TSEG SMM Memory Space ...................................................................... 108 4.1.5. System Bus Interrupt APIC Memory Space .............................................. 109 4.1.6. High SMM Memory Space ........................................................................ 109 4.1.7. AGP Aperture Space (Device #0 BAR) ..................................................... 109 4.1.8. AGP Memory and Prefetchable Memory................................................... 109 4.1.9. Hub Interface A Subtractive Decode......................................................... 110 4.2. AGP Memory Address Ranges ................................................................................... 110 4.2.1. AGP DRAM Graphics Aperture................................................................. 110 4.3. System Management Mode (SMM) Memory Range ................................................... 111 4.3.1. SMM Space Definition............................................................................... 111 4.3.2. SMM Space Restrictions ........................................................................... 112 4.4. I/O Address Space ...................................................................................................... 112 4.5. MCH-M Decode Rules and Cross-Bridge Address Mapping ...................................... 112 4.5.1. Decode Rules for the Hub Interface A ...................................................... 112 4.5.2. AGP Interface Decode Rules .................................................................... 113 5. Functional Description.............................................................................................................. 114 5.1. Host Interface Overview .............................................................................................. 114 5.1.1. Dynamic Bus Inversion.............................................................................. 114 5.1.2. System Bus Interrupt Delivery................................................................... 114 5.1.3. Upstream Interrupt Messages................................................................... 115 5.2. System Memory Interface ........................................................................................... 115 5.2.1. DDR Interface Overview............................................................................ 115 5.2.2. Memory Organization and Configuration................................................... 116 5.2.2.1. Configuration Mechanism for SO-DIMMs..................................... 116 5.2.2.1.1. Memory Detection and Initialization............................ 116 5.2.2.1.2. SMBus Configuration and Access of the Serial Presence Detect Ports................................................ 116 5.2.2.1.3. Memory Register Programming ................................. 116 5.2.3. DRAM Performance Description ............................................................... 117 5.2.3.1. Data Integrity (ECC) ..................................................................... 117 5.3. AGP Interface Overview.............................................................................................. 117 5.3.1. AGP Target Operations............................................................................. 118 5.3.2. AGP Transaction Ordering........................................................................ 119 5.3.3. AGP Signal Levels .................................................................................... 119 5.3.4. 4x AGP Protocol........................................................................................ 119 5.3.5. Fast Writes ................................................................................................ 119 5.3.6. AGP FRAME# Transactions on AGP........................................................ 120 |
Chinese▼
English
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
