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82453NX Datasheet(PDF) 4 Page - Intel Corporation |
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82453NX Datasheet(HTML) 4 Page - Intel Corporation |
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4 / 248 page  -ii- Intel® 450NX PCIset CONTENTS 3.2.2 CONFIG_DATA: Configuration Data Register .............................................................................. 3-2 3.3 MIOC Configuration Space .......................................................................................................................... 3-3 3.3.1 BUFSIZ: Buffer Sizes ................................................................................................................... 3-4 3.3.2 BUSNO[1:0]: Lowest PCI Bus Number, per PXB ......................................................................... 3-5 3.3.3 CHKCON: Check Connection ....................................................................................................... 3-5 3.3.4 CLASS: Class Code Register ....................................................................................................... 3-6 3.3.5 CONFIG: Software-Defined Configuration Register ..................................................................... 3-6 3.3.6 CVCR: Configuration Values Captured on Reset ......................................................................... 3-8 3.3.7 CVDR: Configuration Values Driven On Reset ............................................................................ 3-9 3.3.8 DBC[15:0]: DRAM Bank Configuration Registers ......................................................................... 3-9 3.3.9 DEVMAP: System Bus PCI Device Map .................................................................................... 3-10 3.3.10 DID: Device Identification Register ............................................................................................. 3-11 3.3.11 ECCCMD: ECC Command Register .......................................................................................... 3-11 3.3.12 ECCMSK: ECC Mask Register ................................................................................................... 3-12 3.3.13 ERRCMD: Error Command Register .......................................................................................... 3-12 3.3.14 ERRSTS: Error Status Register ................................................................................................. 3-13 3.3.15 GAPEN: Gap Enables ................................................................................................................ 3-14 3.3.16 HDR: Header Type Register ....................................................................................................... 3-15 3.3.17 HEL[1:0] Host Bus Error Log ...................................................................................................... 3-15 3.3.18 HXGB: High Expansion Gap Base ............................................................................................. 3-16 3.3.19 HXGT: High Expansion Gap Top ............................................................................................... 3-16 3.3.20 IOABASE: I/O APIC Base Address ............................................................................................ 3-16 3.3.21 IOAR: I/O APIC Ranges ............................................................................................................. 3-17 3.3.22 IOR: I/O Ranges ......................................................................................................................... 3-17 3.3.23 ISA: ISA Space ........................................................................................................................... 3-18 3.3.24 LXGB: Low Expansion Gap Base ............................................................................................... 3-18 3.3.25 LXGT: Low Expansion Gap Top ................................................................................................. 3-18 3.3.26 MAR[6:0]: Memory Attribute Region Registers ........................................................................... 3-19 3.3.27 MEA[1:0] Memory Error Effective Address ................................................................................. 3-20 3.3.28 MEL[1:0] Memory Error Log ....................................................................................................... 3-20 3.3.29 MMBASE: Memory-Mapped PCI Base ...................................................................................... 3-21 3.3.30 MMR[3:0]: Memory-Mapped PCI Ranges .................................................................................. 3-21 3.3.31 PMD[1:0]: Performance Monitoring Data Register ..................................................................... 3-21 3.3.32 PME[1:0]: Performance Monitoring Event Selection .................................................................. 3-22 3.3.33 PMR[1:0]: Performance Monitoring Response ........................................................................... 3-23 3.3.34 RC: Reset Control Register ........................................................................................................ 3-24 3.3.35 RCGP: RCGs Present ................................................................................................................ 3-25 3.3.36 REFRESH: DRAM Refresh Control Register ............................................................................. 3-25 3.3.37 RID: Revision Identification Register .......................................................................................... 3-25 3.3.38 ROUTE[1:0]: Route Field Seed ................................................................................................. 3-26 3.3.39 SMRAM: SMM RAM Control Register ........................................................................................ 3-26 3.3.40 SUBA[1:0]: Bus A Subordinate Bus Number, per PXB .............................................................. 3-27 3.3.41 SUBB[1:0]: Bus B Subordinate Bus Number, per PXB .............................................................. 3-28 3.3.42 TCAP[0:3]: Target Capacity, per PXB/PCI Port .......................................................................... 3-28 3.3.43 TOM: Top of Memory ................................................................................................................. 3-29 3.3.44 VID: Vendor Identification Register ............................................................................................ 3-29 3.4 PXB Configuration Space .......................................................................................................................... 3-29 3.4.1 BUFSIZ: Buffer Sizes ................................................................................................................. 3-31 3.4.2 CLASS: Class Code Register ..................................................................................................... 3-31 3.4.3 CLS: Cache Line Size ................................................................................................................ 3-32 3.4.4 CONFIG: Configuration Register ................................................................................................ 3-32 3.4.5 DID: Device Identification Register ............................................................................................. 3-33 3.4.6 ERRCMD: Error Command Register .......................................................................................... 3-34 3.4.7 ERRSTS: Error Status Register ................................................................................................. 3-35 |
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