Other commands, DMA data transfer commands | Fujitsu MPA3052AT

5.4.4Other commands

∙READ MULTIPLE

∙SLEEP

∙WRITE MULTIPLE

See the description of each command.

5.4.5DMA data transfer commands

∙READ DMA

∙WRITE DMA

Starting the DMA transfer command is the same as the READ SECTOR(S) or WRITE SECTOR(S) command except the point that the host initializes the DMA channel preceding the command issuance.

The interrupt processing for the DMA transfer differs the following point.

∙The interrupt processing for the DMA transfer differs the following point.

a)The host writes any parameters to the Features, Sector Count, Sector Number, Cylinder, and Device/Head register.

b)The host initializes the DMA channel

c)The host writes a command code in the Command register.

d)The device sets the BSY bit of the Status register.

e)The device asserts the DMARQ signal after completing the preparation of data transfer. The device asserts either the BSY bit during DMA data transfer.

f)When the command execution is completed, the device clears both BSY and DRQ bits and asserts the INTRQ signal. Then, the host reads the Status register.

g)The host resets the DMA channel.

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C141-E034-02EN

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Fujitsu MPA3052AT, MPA3043AT manual Other commands, ∙ Read Multiple ∙ Sleep ∙ Write Multiple, DMA data transfer commands

Contents

C141-E034-02EN Revision Record Chapter Preface Conventions for Alert Messages Liability Exception Contents Interface Theory of Device Operation Operations Page Figures Page Tables Device Overview Features Functions and performance Interface AdaptabilityPage Specifications Device Specifications Specifications summary Model names and product numbers Model and product number Current and power dissipation Current fluctuation Typ. at +5V when power is turned on Acoustic noise specification MTBF= Shock and vibration specification Error Rate Disk drive outerview Device Configuration System ConfigurationPage Configuration of disk media heads 2 1 drive connection System Configuration ATA interface 3 2 drives connection 2 drives configuration Dimensions Mounting Cable Connections Jumper Settings Installation Conditions Dimensions Orientation PCA Limitation of side-mountingPage Service area Connector locations Cable Connections Device connector Specters Strip Cable connector specificationsAMP Device connection +12V Return +5V Return Power supply connector CN1CN1 11 Factory default setting Jumper configuration Factory default setting 14 Example 1 of Cable Select 13 Jumper setting of Cable Select 092 Disk Outline Head structure Head Actuator SpindleAir filter Circuit Configuration MPA30xxAT Block diagram Power-on Sequence Power-on operation sequence Self-calibration contents Command processing during self-calibration Self-calibration execution timechart Write circuit Read/write preamplifier PreAMPWrite precompensation algorithm Read/write circuit block diagram Read circuit Frequency characteristic of programmable filter PR4 signal transfer Time base generator circuit Write clock frequency and transfer rate of each zone Servo control circuit Physical sector servo configuration on disk surface Page Servo frame format Data-surface servo formatPAD Actuator motor control Spindle motor control Page Chapter Interface Chip Select RESET- Reset Csel Cable Select GND Ground Physical Interface Interface signalsChip Select Signal assignment on the interface connector Signal assignment on the connectorReset Dasp GND Hdmardy IORHstrobe Pidag Ddmardy IordyDstrobe 1 I/O registers DA2 DA1 DA0 Registers Icrc UNC Idnf Abrt TK0NF Amnf Command block registersPage DEV HS3 HS2 HS1 HS0 BSY Drdy DSC DRQ Corr ERR Page Srst Control block registers Command code and parameters 1 Command code and parameters Standby Immediate Sleep Check Power Mode Smart Command code and parameters 2 LBA Command descriptionsLBA LSB LBA Read Multiple XC4 BSY Drdy Intrq DRQ Execution example of Read Multiple command LBA LBA LBA Write Multiple XC5 LBA Write Verify X3C LBA 1F3 HSN Sector No Identify Device XEC Initialize Device ParametersPage Information to be read by Identify Device command 1 Information to be read by Identify Device command 2 Information to be read by Identify Device command 3 Identify Device DMA XEE SET Features XEF ‘BB’ Features register values and settable modes‘CC’ SET Multiple Mode XC6 Page Diagnostic code Page LBA LBA Write Buffer XE8 Page Page Page Page XFF Page ’DA’ Features Register values subcommands and functionsPage 1FE 1FF Format of device attribute value data Format of insurance failure threshold value data Page Page 10 Command code and parameters Error posting Data transferring commands from device to host ∙ Execute Device Diagnostic ∙ Initialize Device Parameters DRQ Intrq BSY Drdy DRQ Intrq BSY Drdy DRQ Intrq Write Sectors command protocol BSY Drdy Intrq Commands without data transfer DMA data transfer commands Other commands∙ Read Multiple ∙ Sleep ∙ Write Multiple ∙ Read DMA ∙ Write DMA IOW DRQ Dmarq Dmack Ultra DMA feature set Overview Phases of operation Data in transfer Pausing an Ultra DMA data in burst Terminating an Ultra DMA data in burst Page Page Data out transfer Pausing an Ultra DMA data out burst Terminating an Ultra DMA data out burst Page Ultra DMA CRC rules 11 Recommended series termination for Ultra DMA Series termination required for Ultra DMADIOR-HDMARDY-HSTROBE DIOW-STOP Timing PIO data transfer IOCS16 Iordy DIOR-/DIOW Dmarq Dmack DIOR-/DIOW Single word DMA data transfer Multiword data transfer 11 Multiword DMA data transfer timing mode 12 Initiating an Ultra DMA data in burst Ultra DMA data transfer Dmardy Name Mode Comment MIN MAX Pull-up time before allowing Iordy to be 13 Sustained Ultra DMA data in burst Sustained Ultra DMA data in burst 14 Host pausing an Ultra DMA data in burst Host pausing an Ultra DMA data in burst 15 Device terminating an Ultra DMA data in burst Device terminating an Ultra DMA data in burst 16 Host terminating an Ultra DMA data in burst Host terminating an Ultra DMA data in burst 17 Initiating an Ultra DMA data out burst 18 Sustained Ultra DMA data out burst Sustained Ultra DMA data out burst 19 Device pausing an Ultra DMA data out burst Device pausing an Ultra DMA data out burst 20 Host terminating an Ultra DMA data out burst Host terminating an Ultra DMA data out burst 21 Device terminating an Ultra DMA data out burst BSY Dasp Power-on and resetBSY Pdiag Dasp Chapter Operations Pdiag Dasp Response to power-on Response to hardware reset Response to software reset Response to diagnostic command MPA Default parameters Logical address LBA0 LBA1 LBA2 Power save modeLBA LBA Page Power commands Alternating defective sectors Spare area Alternate cylinder assignment Data buffer configuration ∙ Read Sector S ∙ Read Multiple ∙ Read DMA Caching operation Usage of read segment ∙ Write Sectors ∙ Write DMA ∙ Write Multiple DAP HAP Mis-hit data Empty data Read-ahead data HAP HAP set to hit position for data transfer Partially hit data Lack data Write Cache ∙ Write Sectors ∙ Write Multiple ∙ Write DMA Fujitsu Limited FAX Fujitsu España S.A Fujitsu Limited