IBM DTLA-305040 Hard Drive Specifications - Page 194
Write Buffer E8h
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12.35 Write Buffer (E8h) Command Block Output Registers Register 7 6 5 4 3 2 1 0 Data Feature Sector Count Sector Number Cylinder Low Cylinder High Device/Head 1 - 1 D - - - - Command 1 1 1 0 1 0 0 0 Error Register 76543210 CRC UNC 0 IDN 0 ABT T0N AMN 00000V00 Command Block Input Registers Register 7 6 5 4 3 2 1 0 Data Error see below Sector Count Sector Number Cylinder Low Cylinder High Device/Head Status see below Status Register 7 6 5 4 3 2 10 BSY RDY DF DSC DRQ COR IDX ERR 0 V 0 - - 0 -V Figure 141. 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 so that sequential Write Buffer and Read Buffer commands access the same 512 bytes within the buffer. Deskstar 40GV & 75GXP hard disk drive specifications 182
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