2-22
Service Guide
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Supports the most flexible six 32-bit populated banks of DRAM for easy DRAM upgrade
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Supports SIMM and DIMM
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Synchronous/Pseudo Synchronous 25/30/33MHz 3.3V/5V tolerance PCI interface
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Concurrent PCI architecture
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PCI bus arbiter: five PCI masters and M1533/ M1543 (ISA Bridge) supported
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6 DWords for CPU-to-PCI memory write posted buffers
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Converts back-to-back CPU to PCI memory write to PCI burst cycle
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38/22 Dwords for PCI-to-DRAM Write-posted/ Read-prefetching buffers
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PCI-to-DRAM up to 133 MB/sec bandwidth (even when L1/L2 write-back)
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L1/L2 pipelined-snoop ahead for PCI-to-DRAM cycle
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Supports PCI mechanism #1 only
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Complies with PCI spec. 2.1 (N(32/16/8)+8 rule, passive release, fair arbitration)
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Enhanced performance for Memory-Read-Line, Memory-Read-Multiple and Memory-write-
Invalidate PCI commands
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Enhanced Power Management
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ACPI support
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PCI bus CLKRUN function
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Dynamic Clock Stop
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Power-on Suspend
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Suspend to Disk
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Suspend to DRAM
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Self refresh during Suspend
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328-pin (27mm x 27mm) BGA package
Содержание 390 Series
Страница 14: ...1 2 Service Guide 1 2 System Board Layout 1 2 1 Mainboard Figure 1 1 PCB No 96183 1A Mainboard Layout Top ...
Страница 15: ...System Introduction 1 3 Figure 1 2 PCB No 96183 1A Mainboard Layout Bottom ...
Страница 96: ...2 50 Service Guide 2 3 3 Pin Configuration Figure 2 4 FDC37C67 TQFP Pin Diagram ...
Страница 97: ...Major Chips Description 2 51 Figure 2 5 FDC37C67 QFP Pin Diagram ...
Страница 102: ...2 56 Service Guide 2 3 6 Block Diagram Figure 2 6 FDC37C67 Block Diagram ...
Страница 111: ...Major Chips Description 2 65 2 4 4 3 Bottom View BGA Ball Assignments Figure 2 8 65555 BGA Ball Assignments Bottom View ...
Страница 126: ...2 80 Service Guide 2 5 4 1 Functional Block Diagram Figure 2 10 M38813 Block Diagram ...
Страница 128: ...2 82 Service Guide 2 6 2 Pin Diagram Figure 2 11 YMF715 Block Diagram ...
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