Seagate ST225 - Page 7

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TABLES
TABLE I: JI Host/Drive Pin Assignments ......•..................... 8
TABLE 2: J2 HOSi/Drive Pin Assignments .. _.• _.....•..........•..•.. 10
TABLE 3: Precompensalion Pallem .......•..••..................... 27
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FIGURES
FIGURE I: lYrical RMS + 12Voh DC Slan-UpCurn:ni Pial .........•.. ~
FIGURE 2: Reference Dimensions •.•..•.••..••.•..•...•...•.••..•.•.
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FIGURE 3: Mounling Dimensions ...........•...................... 6
FIGURE 4: JI ConneclOr Dimensions ......••.•..................... 7
FIGURE S:Control/S.alus Signals ..........••...................•.. 8
FIGURE 6: J2 Connector Dimensions _................•.•... 9
FIGURE 7: Dala Signals .................•.. _ 10
FIGURE 8: JJ Conneclor ....•.............. - II
FIGURE 9: HOSi/Drive Imerface and Drh-eConfiguralion 12
FIGURE 10: Daisy-Chain Configuration 13
FIGURE II: Radial Configuralion _ , ...........•... 14
FIGURE 12:Comrol Signals Drh·er/ReceiverCombinalion ...•........... 16
FIGURE 13: Read/Wrile Timing ...............•..................... 17
FIGURE 14: Buffered·Seek Timing _ 18
FIGURE IS: Slow-Step Timing _•..........•.......... 18
FIGURE 16:AUla-Truncation Timing ........••.•..................•.. 19
FIGURE 17: Drive Select .....•..................................... 20
FIGURE 18: Recovery Mode Timing ......•••..•...................... 21
FIGURE 19: Faull Detection Flow ..........•........•............... 24
FIGURE 20: Power·On Sequence Timing _ 2S
FIGURE 21: Dala Signal Driver/Receiver CombirUltion 26
FIGURE 22: Write Operation _ 26
FIGURE 23: Read Operation , .•...................... 28
FIGURE 24: Microprocessor Operation ..........................•.... 30
FIGURE 2S: Spindle MOIOIControl ...........••...............••.... 31
FIGURE 26: PC Board Removal ..........• _" _
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