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Электронный компонент: 82865P

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Intel
865PE/865P Chipset
Datasheet
Intel
82865PE/82865P Memory Controller Hub (MCH)
May 2003
Document Number: 252523-001
2
Intel
82865PE/82865P MCH
Datasheet
INFORMATION IN THIS DOCUMENT IS PROVIDED IN CONNECTION WITH INTEL
PRODUCTS. NO LICENSE, EXPRESS OR IMPLIED, BY
ESTOPPEL OR OTHERWISE, TO ANY INTELLECTUAL PROPERTY RIGHTS IS GRANTED BY THIS DOCUMENT. EXCEPT AS PROVIDED IN
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Intel may make changes to specifications and product descriptions at any time, without notice.
Designers must not rely on the absence or characteristics of any features or instructions marked "reserved" or "undefined." Intel reserves these for
future definition and shall have no responsibility whatsoever for conflicts or incompatibilities arising from future changes to them.
The Intel
82865PE/82865P MCH may contain design defects or errors known as errata which may cause the product to deviate from published spec-
ifications. Current characterized errata are available on request.
Contact your local Intel sales office or your distributor to obtain the latest specifications and before placing your product order.
I
2
C is a two-wire communications bus/protocol developed by Philips. SMBus is a subset of the I
2
C bus/protocol and was developed by Intel. Imple-
mentations of the I
2
C bus/protocol may require licenses from various entities, including Philips Electronics N.V. and North American Philips Corpora-
tion.
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tries.
*Other names and brands may be claimed as the property of others.
Copyright
2003, Intel Corporation
Intel
82865PE/82865P MCH
Datasheet
3
Contents
1
Introduction
...........................................................................................................13
1.1
Terminology ...................................................................................................14
1.2
Related Documents .......................................................................................15
1.3
Intel
865PE/865P Chipset System Overview...............................................16
1.4
Intel
82865PE/82865P MCH Overview........................................................19
1.4.1
Host Interface....................................................................................19
1.4.2
System Memory Interface .................................................................19
1.4.3
Hub Interface ....................................................................................20
1.4.4
Communications Streaming Architecture (CSA) Interface................20
1.4.5
AGP 8X Interface ..............................................................................20
1.5
Clock Ratios...................................................................................................21
2
Signal Description
..............................................................................................23
2.1
Host Interface Signals....................................................................................25
2.2
Memory Interface ...........................................................................................28
2.2.1
DDR DRAM Interface A ....................................................................28
2.2.2
DDR DRAM Interface B ....................................................................29
2.3
Hub Interface .................................................................................................30
2.4
CSA Interface.................................................................................................30
2.5
AGP Interface Signals....................................................................................31
2.5.1
AGP Addressing Signals...................................................................31
2.5.2
AGP Flow Control Signals ................................................................32
2.5.3
AGP Status Signals ..........................................................................32
2.5.4
AGP Strobes .....................................................................................33
2.5.5
PCI SignalsAGP Semantics............................................................34
2.5.5.1
PCI Pins during PCI Transactions on AGP Interface ........35
2.6
Test Signals ...................................................................................................35
2.7
Clocks, Reset, and Miscellaneous .................................................................36
2.8
RCOMP, VREF, VSWING .............................................................................37
2.9
Power and Ground Signals ............................................................................38
2.10
MCH Sequencing Requirements ...................................................................38
2.11
Signals Used As Straps .................................................................................39
2.11.1 Functional straps...............................................................................39
2.11.2 Strap Input Signals............................................................................39
2.11.3 Full and Warm Reset States .............................................................40
3
Register Description
..........................................................................................41
3.1
Register Terminology.....................................................................................41
3.2
Overview of the Platform Configuration Structure..........................................42
3.3
Routing Configuration Accesses....................................................................44
3.3.1
Standard PCI Bus Configuration Mechanism ...................................44
3.3.2
PCI Bus 0 Configuration Mechanism ................................................44
3.3.3
Primary PCI and Downstream Configuration Mechanism.................44
3.3.4
AGP/PCI_B Bus Configuration Mechanism ......................................45
3.4
I/O Mapped Registers ....................................................................................46
3.4.1
CONFIG_ADDRESS--Configuration Address Register ...................46
3.4.2
CONFIG_DATA--Configuration Data Register ................................47
4
Intel
82865PE/82865P MCH
Datasheet
3.5
DRAM Controller/Host-Hub Interface Device
Registers (Device 0) ...................................................................................... 48
3.5.1
VID--Vendor Identification Register (Device 0)................................ 50
3.5.2
DID--Device Identification Register (Device 0) ................................ 50
3.5.3
PCICMD--PCI Command Register (Device 0)................................. 51
3.5.4
PCISTS--PCI Status Register (Device 0) ........................................ 52
3.5.5
RID--Revision Identification Register (Device 0) ............................. 53
3.5.6
SUBC--Sub-Class Code Register (Device 0) .................................. 53
3.5.7
BCC--Base Class Code Register (Device 0) ................................... 53
3.5.8
MLT--Master Latency Timer Register (Device 0)............................. 54
3.5.9
HDR--Header Type Register (Device 0).......................................... 54
3.5.10 APBASE--Aperture Base Configuration Register (Device 0)........... 55
3.5.11 SVID--Subsystem Vendor Identification Register (Device 0)........... 56
3.5.12 SID--Subsystem Identification Register (Device 0).......................... 56
3.5.13 CAPPTR--Capabilities Pointer Register (Device 0) ......................... 56
3.5.14 AGPM--AGP Miscellaneous Configuration Register
(Device 0) ......................................................................................... 57
3.5.15 CSABCONT--CSA Basic Control Register (Device 0)..................... 57
3.5.16 FPLLCONT--Front Side Bus PLL Clock Control Register
(Device 0) ......................................................................................... 58
3.5.17 PAM[0:6]--Programmable Attribute Map Registers ......................... 59
3.5.18 FDHC--Fixed Memory (ISA) Hole Control Register
(Device 0) ......................................................................................... 61
3.5.19 SMRAM--System Management RAM Control Register
(Device 0) ......................................................................................... 62
3.5.20 ESMRAMC--Extended System Management RAM Control
(Device 0) ......................................................................................... 63
3.5.21 ACAPID--AGP Capability Identifier Register (Device 0) .................. 64
3.5.22 AGPSTAT--AGP Status Register (Device 0)................................... 64
3.5.23 AGPCMD--AGP Command Register (Device 0).............................. 65
3.5.24 AGPCTRL--AGP Control Register (Device 0) ................................. 67
3.5.25 APSIZE--Aperture Size Register (Device 0).................................... 68
3.5.26 ATTBASE--Aperture Translation Table Register (Device 0)............ 69
3.5.27 AMTT--AGP MTT Control Register (Device 0) ................................ 69
3.5.28 LPTT--AGP Low Priority Transaction Timer Register
(Device 0) ......................................................................................... 70
3.5.29 TOUD--Top of Used DRAM Register (Device 0) ............................. 70
3.5.30 MCHCFG--MCH Configuration Register (Device 0) ........................ 71
3.5.31 ERRSTS--Error Status Register (Device 0)..................................... 73
3.5.32 ERRCMD--Error Command Register (Device 0) ............................. 74
3.5.33 SKPD--Scratchpad Data Register (Device 0) .................................. 75
3.5.34 CAPREG--Capability Identification Register (Device 0) .................. 75
3.6
PCI-to-AGP Bridge Registers (Device 1)....................................................... 76
3.6.1
VID1--Vendor Identification Register (Device 1).............................. 77
3.6.2
DID1--Device Identification Register (Device 1) .............................. 77
3.6.3
PCICMD1--PCI Command Register (Device 1)............................... 78
3.6.4
PCISTS1--PCI Status Register (Device 1) ...................................... 79
3.6.5
RID1--Revision Identification Register (Device 1) ........................... 80
3.6.6
SUBC1--Sub-Class Code Register (Device 1) ................................ 80
3.6.7
BCC1--Base Class Code Register (Device 1) ................................. 80
3.6.8
MLT1--Master Latency Timer Register (Device 1)........................... 81
3.6.9
HDR1--Header Type Register (Device 1) ........................................ 81
Intel
82865PE/82865P MCH
Datasheet
5
3.6.10 PBUSN1--Primary Bus Number Register (Device 1).......................81
3.6.11 SBUSN1--Secondary Bus Number Register (Device 1) ..................82
3.6.12 SUBUSN1--Subordinate Bus Number Register (Device 1) .............82
3.6.13 SMLT1--Secondary Bus Master Latency Timer Register
(Device 1)..........................................................................................82
3.6.14 IOBASE1--I/O Base Address Register (Device 1) ...........................83
3.6.15 IOLIMIT1--I/O Limit Address Register (Device 1) ............................83
3.6.16 SSTS1--Secondary Status Register (Device 1)...............................84
3.6.17 MBASE1--Memory Base Address Register (Device 1)....................85
3.6.18 MLIMIT1--Memory Limit Address Register (Device 1).....................86
3.6.19 PMBASE1--Prefetchable Memory Base Address Register
(Device 1)..........................................................................................87
3.6.20 PMLIMIT1--Prefetchable Memory Limit Address Register
(Device 1)..........................................................................................87
3.6.21 BCTRL1--Bridge Control Register (Device 1)..................................88
3.6.22 ERRCMD1--Error Command Register (Device 1) ...........................89
3.7
PCI-to-CSA Bridge Registers (Device 3) .......................................................90
3.7.1
VID3--Vendor Identification Register (Device 3)..............................91
3.7.2
DID3--Device Identification Register (Device 3) ..............................91
3.7.3
PCICMD3--PCI Command Register (Device 3)...............................92
3.7.4
PCISTS3--PCI Status Register (Device 3) ......................................93
3.7.5
RID3--Revision Identification Register (Device 3) ...........................93
3.7.6
SUBC3--Class Code Register (Device 3) ........................................94
3.7.7
BCC3--Base Class Code Register (Device 3) .................................94
3.7.8
MLT3--Master Latency Timer Register (Device 3)...........................94
3.7.9
HDR3--Header Type Register (Device 3) ........................................95
3.7.10 PBUSN3--Primary Bus Number Register (Device 3).......................95
3.7.11 SBUSN3--Secondary Bus Number Register (Device 3) ..................95
3.7.12 SMLT3--Secondary Bus Master Latency Timer Register
(Device 3)..........................................................................................96
3.7.13 IOBASE3--I/O Base Address Register (Device 3) ...........................96
3.7.14 IOLIMIT3--I/O Limit Address Register (Device 3) ............................96
3.7.15 SSTS3--Secondary Status Register (Device 3)...............................97
3.7.16 MBASE3--Memory Base Address Register (Device 3)....................98
3.7.17 MLIMIT3--Memory Limit Address Register (Device 3).....................99
3.7.18 PMBASE3--Prefetchable Memory Base Address Register
(Device 3)........................................................................................100
3.7.19 PMLIMIT3--Prefetchable Memory Limit Address Register
(Device 3)........................................................................................100
3.7.20 BCTRL3--Bridge Control Register (Device 3)................................101
3.7.21 ERRCMD3--Error Command Register Registers (Device 3) .........102
3.7.22 CSACNTRL--CSA Control Registers (Device 3) ...........................102
3.8
Overflow Configuration Registers (Device 6)...............................................103
3.8.1
VID6--Vendor Identification Register (Device 6)............................103
3.8.2
DID6--Device Identification Register (Device 6) ............................104
3.8.3
PCICMD6--PCI Command Register (Device 6).............................104
3.8.4
PCISTS6--PCI Status Register (Device 6) ....................................105
3.8.5
RID6--Revision Identification Register (Device 6) .........................105
3.8.6
SUBC6--Sub-Class Code Register (Device 6) ..............................106
3.8.7
BCC6--Base Class Code Register (Device 6) ...............................106
3.8.8
HDR6--Header Type Register (Device 6) ......................................106
3.8.9
BAR6--Memory Delays Base Address Register (Device 6)...........107