82870P2P64H2 Datasheet, PDF (3/217 Pages) –

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Contents
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Introduction ....................................................................................................................... 17
1.1 Related Documents.............................................................................................. 17
1.2 Intel^® P64H2 Overview ......................................................................................... 17
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Signal Description ............................................................................................................. 19
2.1 Hub Interface........................................................................................................ 21
2.2 PCI Bus Interface 64-bit Extension ...................................................................... 25
2.3 PCI Bus Interface Clocks and Reset.................................................................... 27
2.4 Interrupt Interface ................................................................................................. 28
2.5 Hot Plug Interface................................................................................................. 29
2.6 SMBus Interface................................................................................................... 31
2.7 Miscellaneous Signals.......................................................................................... 31
2.8 Power and Reference Voltage Signals................................................................. 32
2.9 Pin Straps............................................................................................................. 32
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Register Description.......................................................................................................... 34
3.1 Register Nomenclature and Access Attributes..................................................... 35
3.2 Hub Interface-to-PCI Bridge PCI Configuration Registers (Device 31 and 29).... 36
3.2.1
3.2.2
3.2.3
3.2.4
3.2.5
3.2.6
3.2.7
3.2.8
3.2.9
3.2.10
3.2.11
3.2.12
3.2.13
3.2.14
3.2.15
3.2.16
3.2.17
3.2.18
3.2.19
3.2.20
3.2.21
3.2.22
3.2.23
VID—Vendor ID Register (D29,31: F0) ................................................ 38
DID—Device ID Register (D29,31: F0)................................................. 38
PD_CMD—PCI Primary Device Command Register (D29,31: F0) ..... 38
PD_STS—PCI Primary Device Status Register (D29,31: F0) .............. 40
RID—Revision ID Register (D29,31: F0) .............................................. 41
CC—Class Code Register (D29,31: F0)............................................... 41
CLS—Cache Line Size Register (D29,31: F0) ..................................... 42
PMLT—Primary Master Latency Timer Register (D29,31: F0)............ 42
HEADTYP—Header Type Register (D29,31: F0)................................. 42
BNUM—Bus Number Register (D29,31: F0)........................................ 43
SMLT—Secondary Master Latency Timer (D29,31: F0) ...................... 43
IOBL_ADR—I/O Base and Limit Address Register D29,31: F04 ........ 44
SECSTS—Secondary Status Register (D29,31: F0)............................ 44
MBL_ADR—Memory Base and Limit Address Register (D29,31: F0) . 46
PMBL_ADR—Prefetchable Memory Base and Limit Address
Register (D29,31: F0) ........................................................................... 46
PREF_MEM_BASE_UPPER—Prefetchable Memory Base
Upper 32 Bit Address Register (D29,31: F0) ........................................ 47
PREF_MEM_LIM_UPPER—Prefetchable Memory Limit
Upper 32 Bit Address Register (D29,31: F0) ........................................ 47
IOBLU16_ADR—I/O Base and Limit Upper 16 Bit Address
Register (D29,31: F0) ........................................................................... 47
CAPP—Capabilities List Pointer Register (D29,31: F0) ....................... 48
INTR—Interrupt Information Register (D29,31: F0).............................. 48
BRIDGE_CNT—Bridge Control Register (D31: F0) ............................. 48
CNF—P64H2 Configuration Register (D29,31: F0).............................. 51
MTT—Multi-Transaction Timer Register (D29,31: F0) ......................... 52
Intel^® 82870P2 P64H2 Datasheet
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