Major Chips Description
2-3
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UMA (unified memory architecture)
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Dedicated UMA arbiter pins
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Supports several protocols from major graphics vendors
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SFB size : 512KB/1MB/2MB/3MB/4MB
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CPU could access frame buffer memory through system memory controller
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Alias address for frame buffer memory
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Fully synchronous 25/30/33 MHz 5V PCI interface
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PCI bus arbiter: five PCI masters and M1523 supported
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Dwords for CPU-to-PCI Memory write posted buffers
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Convert back-to-back CPU to PCI memory write to PCI burst cycle
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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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PCI spec. 2.1 support. [N(16/8)+8 rule, passive release, fair arbitration]
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Enhanced performance for memory-read-line, memory-read-multiple, and
memory-write-multiple
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Invalidates PCI commands
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DRAM refresh during 5V system suspend
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I/O leakage stopper for power saving during system suspend
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328-pin or 388-pin BGA process
Summary of Contents for AcerNote Light 370P
Page 6: ...vi ...
Page 26: ...1 8 Service Guide Figure 1 5 Main Board Layout Bottom Side ...
Page 49: ...System Introduction 1 31 1 5 1 3 Power Management Figure 1 14 Power Management Block Diagram ...
Page 55: ...System Introduction 1 37 1 6 System Block Diagram Figure 1 15 System Block Diagram ...
Page 64: ...Major Chips Description 2 7 2 2 5 Pin Diagram Figure 2 4 M1521 Pin Diagram ...
Page 99: ...2 42 Service Guide 2 5 3 Pin Diagram Figure 2 10 C T 65550 Pin Diagram ...
Page 117: ...2 60 Service Guide Figure 2 12 Functional block diagram CardBus Card Interface ...
Page 119: ...2 62 Service Guide Figure 2 14 PCI to CardBus terminal assignments ...
Page 135: ...2 78 Service Guide 2 7 3 Pin Diagram Figure 2 16 NS87336VJG Pin Diagram ...
Page 145: ...2 88 Service Guide 2 8 2 Pin Diagram Figure 2 17 YMF715 Block Diagram ...
Page 185: ...Disassembly and Unit Replacement 4 5 Figure 4 3 Disassembly Sequence Flowchart ...
Page 209: ...B 2 Service Guide ...
Page 210: ...Exploded View Diagram B 3 ...
