User Guide

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Q: ¤°»ò¬O Ultra DMA/33?
A: ³o¬O¤@ºØ·sªº³W®æ¡A¥Øªº¦b§ïµ½ IDE µwºÐªº¶Ç¿é²v¡A¶Ç²Î¤§ PIO Mode ¶È¨Ï¥Î
IDE ±±¨î«H¸¹¤§¤W½t (Rising edge) ¨Ó¶Ç¿é¸ê®Æ¡ADMA/33 «h¥i¦P®É¨Ï¥Î¤W½t©M
¤U½t(Falling edge) ¡A¦]¦¹¸ê°T¶Ç¿é²v¬O PIO Mode 4 ©Î DMA Mode 2 ªº¨â-¿¡A
(16.6MB/S x 2 = 33MB/S) ¡C
¤Uªí¦C¥X IDE PIO ©M DMA Mode¤§¶Ç¿é²v¡A¦] IDE ¶×¬y±Æ¬O16 bit¡A¬G¨C¦¸¶Ç
¿é¬O 2 byte¡C
Mode Clock per
33MHz
PCI
Clock
count
Cycle
time
Data Transfer rate
PIO mode 0 30ns 20 600ns (1/600ns) x 2byte = 3.3MB/s
PIO mode 1 30ns 13 383ns (1/383ns) x 2byte = 5.2MB/s
PIO mode 2 30ns 8 240ns (1/240ns) x 2byte = 8.3MB/s
PIO mode 3 30ns 6 180ns (1/180ns) x 2byte = 11.1MB/s
PIO mode 4 30ns 4 120ns (1/120ns) x 2byte = 16.6MB/s
DMA mode 0 30ns 16 480ns (1/480ns) x 2byte = 4.16MB/s
DMA mode 1 30ns 5 150ns (1/150ns) x 2byte = 13.3MB/s
DMA mode 2 30ns 4 120ns (1/120ns) x 2byte = 16.6MB/s
DMA/33
30ns 4 120ns (1/120ns) x 2byte x2 = 33MB/s
Q: ¤°»ò¬O ACPI (Advanced Configuration & Power Interface) ©M OnNow¡H
A: ACPI ¬O1997(PC97) ªº¤@ºØ·sªº¹q·½ºÞ²z³W®æ¡A¨ä¥Øªº¦b§ó¶i¤@¨B¸g¥Ñ§@·~¨t
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¹³ÀH´¡§Y¥Î PnP ¤§¤¶-± (Register Interface)¡C
ACPI ³W©w¨Ï¥ÎµL¬q¦¡¹q·½«öÁä (Momentary Soft Power Switch) ¨Ó±±¨î¥Î¹q·½
ª¬ªp¤§¤Á´«¡A¦]¦¹¥²¶·¦b ATX Form Factor °t¦XMomentary Soft Power Switch
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¹q¸£(Notebook) ©Ò©µ¦ù¦Ó¨Óªººc·Q ”OnNow”¡C³o¥\¯à¤¹³\§A°¨¤W¦^¨ì¤W¤@¦¸Ãö
¾÷«eªº¤u§@µe-±¡A¦Ó¤£¥Îªáªø®É¶¡µ¥«Ý±q¶}¾÷±Ò°Ê (Bootup)¡A¶i¤JWin95¡AµM«á
¶i¤J Winword¡C¨Ï¥Î TX ´¹¤ù¤§«ØùÖ AOpen AX5T¡A§Y¤ä´© ACPI ¥\¯à¡C