Intel® 945G/945GZ/945GC/ 945P/945PL Express Chipset Family ...

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Host Bridge/DRAM Controller Registers (D0:F0) 4.3 EPBAR Registers—Egress Port Register Summary The MCHBAR registers are offset from the EPBAR base address. Table 4-3 provides an address map of the registers listed by address offset in ascending order. Detailed bit descriptions of the registers follow the table. Link Declaration Topology is shown in Figure 4-1. Table 4-3. Egress Port Register Address Map Address Offset Symbol Register Name Default Value Access 044h–047h EPESD EP Element Self Description 00000201h R/WO, RO 050h–053h EPLE1D EP Link Entry 1 Description 01000000h R/WO, RO 058h– 05Fh EPLE1A EP Link Entry 1 Address 000000000 0000000h R/WO, RO 060h–063h EPLE2D EP Link Entry 2 Description 02000002h R/WO, RO 068h– 06Fh Figure 4-1. Link Declaration Topology X16 EPLE2A EP Link Entry 2 Address 000000000 0008000h PEG (Port #2) Link #1 (Type 0) Link #2 (Type 1) Link #1 (Type 0) DMI (Port #1) Egress Port (Port #0) Link #2 (Type 0) Egress Port (Port #0) Link #1 (Type 0) Egress_LinkDeclar_Topo 104 Intel ® 82945G/82945GZ/82945GC GMCH and 82945P/82945PL MCH Datasheet X4 (G)MCH Intel ® ICH7 RO Main Memory Subsystem
4.3.1 EPESD—EP Element Self Description MMIO Range: EPBAR Address Offset: 044–047h Default Value: 00000201h Access: RO, R/WO Size: 32 bits Host Bridge/DRAM Controller Registers (D0:F0) This register provides information about the root complex element containing this Link Declaration Capability. Bit Access & Default 31:24 RO 00h 23:16 R/WO 00h 15:8 RO 02h 7:4 Reserved 3:0 RO 01h Description Port Number: This field specifies the port number associated with this element with respect to the component that contains this element. 00h = Indicates to configuration software that this is the default egress port. Component ID: This field identifies the physical component that contains this Root Complex Element. Component IDs start at 1. This value is a mirror of the value in the Component ID field of all elements in this component. The value only needs to be written in one of the mirrored fields and it will be reflected everywhere that it is mirrored. Number of Link Entries: This field indicates the number of link entries following the Element Self Description. This field reports 2 (one each for PCI Express* and DMI). Element Type: This field indicates the type of the Root Complex Element. 1h = Represents a port to system memory Intel ® 82945G/82945G/82945GC GMCH and 82945P/82945PL MCH Datasheet 105
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Intel ® 945G/945GZ/945GC/ 945P/945
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Contents 1 Introduction ...........
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4.2.11 C0DRC1—Channel A DRAM Cont
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6.1.16 DMICESTS—DMI Correctable E
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9.4.5 SMM Space Decode and Transact
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11.3 DC Characteristics ...........
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Revision History Rev Description Da
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Intel ® 82945G/82945GZ/82945GC/829
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1 Introduction Introduction The Int
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Figure 1-2. Intel ® 945GZ/82945GC
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1.1 Terminology Term Description Ac
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Term Description TOLM Top Of Low Me
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Introduction � Supports four bank
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Introduction 1.4 Graphics (Intel ®
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1.5 Analog and SDVO Displays (Intel
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2 Signal Description Signal Descrip
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2.1 Host Interface Signals Signal D
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Signal Name Type Description HREQ[4
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2.3 DDR2 DRAM Channel B Interface S
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Signal Description 2.6 Analog Displ
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2.8 Direct Media Interface (DMI) Si
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2.10 Power and Ground Name Voltage
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Interface Signal Name I/O System Me
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Interface Signal Name I/O State Dur
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3 Register Description Register Des
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Register Description Note: A physic
Page 53 and 54: 3.3 Configuration Mechanisms Regist
Page 55 and 56: 3.4 Routing Configuration Accesses
Page 57 and 58: 3.4.2.2 DMI Configuration Accesses
Page 59 and 60: Bit Access & Default 10:8 R/W 000b
Page 61 and 62: Host Bridge/DRAM Controller Registe
Page 63 and 64: 4.1 Device 0 Configuration Register
Page 65 and 66: 4.1.4 PCISTS—PCI Status (D0:F0) P
Page 67 and 68: 4.1.7 MLT—Master Latency Timer (D
Page 69 and 70: 4.1.12 EPBAR—Egress Port Base Add
Page 77 and 78: 4.1.19 PAM1—Programmable Attribut
Page 83 and 84: 4.1.25 LAC—Legacy Access Control
Page 87 and 88: 4.1.29 ERRSTS—Error Status (D0:F0
Page 89 and 90: 4.1.31 SKPD—Scratchpad Data (D0:F
Page 95 and 96: 4.2.7 C0DCLKDIS—Channel A DRAM Cl
Page 97 and 98: 4.2.9 C0DRT1—Channel A DRAM Timin
Page 99 and 100: Bit Access & Default 6:4 R/W 000b 3
Page 103: 4.2.24 PMSTS—Power Management Sta
Page 107 and 108: 4.3.3 EPLE1A—EP Link Entry 1 Addr
Page 109 and 110: Host-PCI Express* Bridge Registers
Page 111 and 112: Address Offset Host-PCI Express* Br
Page 113 and 114: 5.1.3 PCICMD1—PCI Command (D1:F0)
Page 115 and 116: 5.1.4 PCISTS1—PCI Status (D1:F0)
Page 117 and 118: 5.1.7 CL1—Cache Line Size (D1:F0)
Page 119 and 120: 5.1.12 IOBASE1—I/O Base Address (
Page 121 and 122: 5.1.15 MBASE1—Memory Base Address
Page 125 and 126: 5.1.20 INTRLINE1—Interrupt Line (
Page 127 and 128: Bit Access & Default 2 R/W 0b 1 R/W
Page 133 and 134: 5.1.29 MA—Message Address (D1:F0)
Page 135 and 136: 5.1.33 DCAP—Device Capabilities (
Page 137 and 138: 5.1.35 DSTS—Device Status (D1:F0)
Page 139 and 140: 5.1.37 LCTL—Link Control (D1:F0)
Page 141 and 142: 5.1.39 SLOTCAP—Slot Capabilities
Page 143 and 144: 5.1.41 SLOTSTS—Slot Status (D1:F0
Page 145 and 146: 5.1.43 RSTS—Root Status (D1:F0) P
Page 153 and 154: 5.1.56 ESD—Element Self Descripti
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Host-PCI Express* Bridge Registers
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5.1.61 CESTS—Correctable Error St
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Host-PCI Express* Bridge Registers
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Direct Media Interface (DMI) RCRB 6
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6.1.3 DMIPVCCAP2—DMI Port VC Capa
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6.1.6 DMIVC0RCTL—DMI VC0 Resource
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6.1.9 DMIVC1RCTL—DMI VC1 Resource
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6.1.13 DMILSTS—DMI Link Status MM
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6.1.15 DMIUEMSK—DMI Uncorrectable
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Integrated Graphics Device (D2:F0)
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7.1.4 PCISTS2—PCI Status (D2:F0)
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7.1.7 CLS—Cache Line Size (D2:F0)
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7.1.11 IOBAR—I/O Base Address (D2
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7.1.20 MINGNT—Minimum Grant (D2:F
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8.1.3 PCICMD2—PCI Command (D2:F1)
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8.1.5 RID2—Revision Identificatio
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8.2 Device 2 - PCI I/O Registers In
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9 System Address Map System Address
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Figure 9-1. System Address Ranges 4
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Compatible SMRAM Address Range (A_0
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9.2 Main Memory Address Range (1 MB
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9.3 PCI Memory Address Range (TOLUD
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9.3.6 PCI Express* Graphics Attach
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9.4.1 SMM Space Definition System A
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9.4.5 SMM Space Decode and Transact
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9.4.12 Legacy VGA and I/O Range Dec
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10 Functional Description This chap
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Interleaved Mode Functional Descrip
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667 MHz (PC 5300) (82945G/82945GC/8
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10.2.2.2 System Memory Supported Co
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Functional Description Table 10-5.
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10.3 PCI Express* (Intel ® 82945G/
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Figure 10-2. SDVO Conceptual Block
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Figure 10-3. Concurrent SDVO / PCI
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10.5 Integrated Graphics Device (In
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10.5.3 4X Faster Setup Engine Funct
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10.5.4 Texture Engine Functional De
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10.5.4.8 Pixel Shader Functional De
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Functional Description to determine
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10.5.6 2D Engine Functional Descrip
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10.5.8.1 Cursor Plane Functional De
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Functional Description device is in
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10.6.2 Digital Display Interface Fu
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10.6.2.1.5 Control Bus Functional D
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Figure 10-7 illustrates the various
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11 Electrical Characteristics Elect
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11.1.1 Power Characteristics Table
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Signal Group Electrical Characteris
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11.3 DC Characteristics Table 11-5.
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Symbol Signal Group Electrical Char
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Ballout and Package Information 12
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Ballout and Package Information Fig
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12.2 Ballout Table Ballout and Pack
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Ballout and Package Information EXP
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Ballout and Package Information HA2
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Ballout and Package Information HD6
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Ballout and Package Information RSV
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Ballout and Package Information SDM
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Ballout and Package Information SDQ
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Ballout and Package Information SDQ
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Ballout and Package Information VCC
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Ballout and Package Information VSS
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12.3 Package § Ballout and Package
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Ballout and Package Information Int
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13.2 XOR Test Mode Initialization T
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13.4 XOR Chains Testability Table 1
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Table 13-5. XOR Chain 2 Pin Count B
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Table 13-8. XOR Chain 5 Pin Count B
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Table 13-11. XOR Chain 8 Pin Count
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Intel® 945G/945GZ/945GC/ 945P/945PL Express Chipset Family ...

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