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

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Integrated Graphics Device (D2:F1) Registers (Intel® 82945G/82945GC/82945GZ GMCH Only) Address Offset Symbol Register Name Default Value Access 44h MCAPPTR Mirror of Device 0 Capability Pointer E0h RO 45–47h — Reserved — — 48–50h MCAPID Mirror of Device 0 Capability Identification 0000000000 01090009h 51h — Reserved — — 52–53h MGGC Mirror of Device 0 GMCH Graphics Control 192 Intel ® 82945G/82945GZ/82945GC GMCH and 82945P/82945PL MCH Datasheet RO 0030h RO 54–57h MDEVEN Mirror of Device 0 Device Enable 0000001Bh RO 58–5Bh — Reserved — — 5C–5Fh BSM Base of Stolen Memory Register 07800000h RO 60–CFh — Reserved 0000h — D0–D1h PMCAPID Power Management Capabilities ID 0001h RO D2–D3h PMCAP Power Management Capabilities 0022h RO D4–D5h PMCS Power Management Control/Status 0000h RO, R/W D6–DFh — Reserved — — E0–E1h SWSMI Software SMI 0000h R/W E2–FBh — Reserved — — FC–FFh ASLS ASL Storage 00000000h R/W 8.1.1 VID2—Vendor Identification (D2:F1) PCI Device: 2 Address Offset: 00h Default Value: 8086h Access: RO Size: 16 bits This register is a copy of Device2, Function 0. It has the same read, write attributes as Function 0. It is implemented as common hardware with two access addresses. 8.1.2 DID2—Device Identification (D2:F1) PCI Device: 2 Address Offset: 02h Default Value: 2776h Access: RO Size: 16 bits This register is unique in Function 1 (the Function 0 DID is separate). This difference in Device ID is necessary for allowing distinct Plug and Play enumeration of Function 1 when both Function 0 and Function 1 have the same class code.
8.1.3 PCICMD2—PCI Command (D2:F1) PCI Device: 2 Address Offset: 04h Default Value: 0000h Access: RO, R/W Size: 16 bits Integrated Graphics Device (D2:F1) Registers (Intel® 82945G/82945GC/82945GZ GMCH Only) This 16-bit register provides basic control over the IGD’s ability to respond to PCI cycles. The PCICMD register in the IGD disables the IGD PCI compliant master accesses to main memory. Bit Access & Default 15:10 Reserved 9 RO 0b 8 RO 0b 7 RO 0b 6 RO 0b 5 RO 0b 4 RO 0b 3 RO 0b 2 R/W 0b 1 R/W 0b 0 R/W 0b Description Fast Back-to-Back (FB2B): Hardwired to 0. Not Implemented. SERR Enable (SERRE): Hardwired to 0. Not Implemented. Address/Data Stepping Enable (ADSTEP): Hardwired to 0. Not Implemented. Parity Error Enable (PERRE): Hardwired to 0. Not Implemented. Since the IGD belongs to the category of devices that does not corrupt programs or data in system memory or hard drives, the IGD ignores any parity error that it detects and continues with normal operation. VGA Palette Snoop Enable (VGASNOOP): Hardwired to 0 to disable snooping. Memory Write and Invalidate Enable (MWIE): Hardwired to 0. The IGD does not support memory write and invalidate commands. Special Cycle Enable (SCE): Hardwired to 0. The IGD ignores special cycles. Bus Master Enable (BME): 0 = Disable. 1 = Enable. Enable the IGD to function as a PCI compliant master. Memory Access Enable (MAE): This bit controls the IGD’s response to memory space accesses. 0 = Disable. 1 = Enable. I/O Access Enable (IOAE): This bit controls the IGD’s response to I/O space accesses. 0 = Disable. 1 = Enable. Intel ® 82945G/82945G/82945GC GMCH and 82945P/82945PL MCH Datasheet 193
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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
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3.3 Configuration Mechanisms Regist
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3.4 Routing Configuration Accesses
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3.4.2.2 DMI Configuration Accesses
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Bit Access & Default 10:8 R/W 000b
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Host Bridge/DRAM Controller Registe
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4.1 Device 0 Configuration Register
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4.1.4 PCISTS—PCI Status (D0:F0) P
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4.1.7 MLT—Master Latency Timer (D
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4.1.12 EPBAR—Egress Port Base Add
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4.1.19 PAM1—Programmable Attribut
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4.1.25 LAC—Legacy Access Control
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4.1.29 ERRSTS—Error Status (D0:F0
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4.1.31 SKPD—Scratchpad Data (D0:F
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4.2.7 C0DCLKDIS—Channel A DRAM Cl
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4.2.9 C0DRT1—Channel A DRAM Timin
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Bit Access & Default 6:4 R/W 000b 3
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4.2.24 PMSTS—Power Management Sta
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4.3.1 EPESD—EP Element Self Descr
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4.3.3 EPLE1A—EP Link Entry 1 Addr
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Host-PCI Express* Bridge Registers
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Address Offset Host-PCI Express* Br
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5.1.3 PCICMD1—PCI Command (D1:F0)
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5.1.4 PCISTS1—PCI Status (D1:F0)
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5.1.7 CL1—Cache Line Size (D1:F0)
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5.1.12 IOBASE1—I/O Base Address (
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5.1.15 MBASE1—Memory Base Address
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5.1.20 INTRLINE1—Interrupt Line (
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Bit Access & Default 2 R/W 0b 1 R/W
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5.1.29 MA—Message Address (D1:F0)
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5.1.33 DCAP—Device Capabilities (
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5.1.35 DSTS—Device Status (D1:F0)
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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 147 and 148: Host-PCI Express* Bridge Registers
Page 153 and 154: 5.1.56 ESD—Element Self Descripti
Page 157 and 158: 5.1.61 CESTS—Correctable Error St
Page 161 and 162: Direct Media Interface (DMI) RCRB 6
Page 163 and 164: 6.1.3 DMIPVCCAP2—DMI Port VC Capa
Page 165 and 166: 6.1.6 DMIVC0RCTL—DMI VC0 Resource
Page 167 and 168: 6.1.9 DMIVC1RCTL—DMI VC1 Resource
Page 169 and 170: 6.1.13 DMILSTS—DMI Link Status MM
Page 171 and 172: 6.1.15 DMIUEMSK—DMI Uncorrectable
Page 173 and 174: Integrated Graphics Device (D2:F0)
Page 177 and 178: 7.1.4 PCISTS2—PCI Status (D2:F0)
Page 179 and 180: 7.1.7 CLS—Cache Line Size (D2:F0)
Page 181 and 182: 7.1.11 IOBAR—I/O Base Address (D2
Page 185 and 186: 7.1.20 MINGNT—Minimum Grant (D2:F
Page 191: Integrated Graphics Device (D2:F1)
Page 195 and 196: 8.1.5 RID2—Revision Identificatio
Page 203 and 204: 8.2 Device 2 - PCI I/O Registers In
Page 205 and 206: 9 System Address Map System Address
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Page 209 and 210: Compatible SMRAM Address Range (A_0
Page 211 and 212: 9.2 Main Memory Address Range (1 MB
Page 213 and 214: 9.3 PCI Memory Address Range (TOLUD
Page 215 and 216: 9.3.6 PCI Express* Graphics Attach
Page 217 and 218: 9.4.1 SMM Space Definition System A
Page 219 and 220: 9.4.5 SMM Space Decode and Transact
Page 221 and 222: 9.4.12 Legacy VGA and I/O Range Dec
Page 223 and 224: 10 Functional Description This chap
Page 225 and 226: Interleaved Mode Functional Descrip
Page 227 and 228: 667 MHz (PC 5300) (82945G/82945GC/8
Page 229 and 230: 10.2.2.2 System Memory Supported Co
Page 231 and 232: Functional Description Table 10-5.
Page 233 and 234: 10.3 PCI Express* (Intel ® 82945G/
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Page 237 and 238: Figure 10-3. Concurrent SDVO / PCI
Page 239 and 240: 10.5 Integrated Graphics Device (In
Page 241 and 242: 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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