Hitachi HTS541680J9SA00 Specifications - Page 149
Write Buffer E8h
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Travelstar 5K160 (SATA) Hard Disk Drive Specification 14.43 Write Buffer (E8h) Command Block Output Registers Register 76543210 Data -------- Feature -------- Sector Count -------- LBA Low -------- LBA Mid -------- LBA High -------- Device -------- Command 11101000 Command Block Input Registers Register 76543210 Data -------- Error ...See Below... Sector Count -------- LBA Low -------- LBA Mid -------- LBA High -------- Device -------- Status ...See Below... Error Register 7 6 5 4 3 2 1 0 CRC UNC 0 IDN 0 ABT T0N AM N 000 0 0V0 0 Figure 98 Write Buffer Command (E8h) Status Register 7 6543 2 10 BSY RDY DF DSC DRQ COR IDX ERR 0V0 - - 0 0V 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. 149/167