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13.35 Write Buffer (E8h)
see below Status 1 1 1 0 1 0 0 0 Command
– – – – – – – – Device/Head 1 – 1 D – – – – Device/Head
– – – – – – – – Cylinder High – – – – – – – – Cylinder High
– – – – – – – – Cylinder Low – – – – – – – – Cylinder Low
– – – – – – – – Sector Number – – – – – – – – Sector Number
– – – – – – – – Sector Count – – – – – – – – Sector Count
see below Error – – – – – – – – Feature
– – – – – – – – Data – – – – – – – – Data
7 6 5 4 3 2 1 0 Register 7 6 5 4 3 2 1 0 Register
Command Block Input Registers Command Block Output Registers
V – 0 – – 0 V 0 0 0 V 0 0 0 0 0
ERR IDX COR DRQ DSC DF RDY BSY AMN T0N ABT 0 IDN 0 UNC CRC
0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7
Status Register Error Register
Figure 124. Write Buffer command (E8h)
The Write Buffer command transfers a sector of data from the host to the sector buffer of the device. The
sectors of data are transferred through the Data Register 16 bits at a time.
The Read Buffer and Write Buffer commands are synchronized such that sequential Write Buffer and
Read Buffer commands access the same 512 byte within the buffer.
Travelstar 32GH/30GT/20GN hard disk drive specifications
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