Hitachi IC35L060AVV207 Datasheet Page 110

  • Download
  • Add to my manuals
  • Print
  • Page
    / 247
  • Table of contents
  • BOOKMARKS
  • Rated. / 5. Based on customer reviews
Page view 109
10.1 PIO Data In commands
These commands are
y Device Configuration Identify
y Identify Device
y Read Buffer
y Read Log Ext
y Read Long
y Read Multiple
y Read Multiple Ext
y Read Sector(s)
y Read Sector(s) Ext
y S.M.A.R.T. Read Attribute Values
y S.M.A.R.T. Read Attribute Thresholds
y S.M.A.R.T. Read Log Sector
Execution includes the transfer of one or more 512 byte (>512 bytes on Read Long) sectors of data from
the device to the host.
1. The host writes any required parameters to the Features, Sector Count, Sector Number, Cylinder,
and Device/Head Registers.
2. The host writes the command code to the Command Register.
3. For each sector of data to be transferred
a. The device sets BSY=1 and prepares for data transfer.
b. When a sector of data is available for transfer to the host, the device sets BSY=0 and DRQ=1
and interrupts the host.
c. In response to the interrupt the host reads the Status Register.
d. The device clears the interrupt in response to the Status Register being read.
e. The host reads one sector (or block) of data via the Data Register.
f. The device sets DRQ=0 after the sector (or block) has been transferred to the host.
4. For the Read Long command
a. The device sets BSY=1 and prepares for data transfer.
b. When the sector of data is available for transfer to the host, the device sets BSY=0, sets DRQ=1,
and interrupts the host.
c. In response to the interrupt the host reads the Status Register.
d. The device clears the interrupt in response to the Status Register being read.
e. The host reads the sector of data including ECC bytes via the Data Register.
f. The device sets DRQ=0 after the sector has been transferred to the host.
The Read Multiple command transfers one block of data for each interrupt. The other commands transfer
one sector of data for each interrupt.
Deskstar 180GXP hard disk drive specifications
96
Page view 109
1 2 ... 105 106 107 108 109 110 111 112 113 114 115 ... 246 247

Comments to this Manuals

No comments