Hitachi HDT725025VLA380 Specifications - Page 272
Writer Multiple FUA Ext CEh
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12.53 Writer Multiple FUA Ext (CEh) Command Block Output Registers Register 7 6 5 4 3 2 1 0 Data Low Data High Current Feature Previous Sector Count Current Previous V V V V V V V V V V V V V V V V Sector Number Current Previous V V V V V V V V V V V V V V V V Cylinder Current Low Previous V V V V V V V V V V V V V V V V Cylinder Current V V V V V V V V High Previous V V V V V V V V Device/Head - 1 - D - - - - Command 0 0 1 1 1 0 0 1 Command Block Input Registers Register 7 6 5 4 3 2 1 0 Data Low Data High Error See below Sector Count HOB=0 HOB=1 Sector Number HOB=0 HOB=1 Cylinder HOB=0 Low HOB=1 Cylinder HOB=0 High HOB=1 Device/Head Status V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V See below ... 76 CRC UNC 00 Error Register 54 3 2 1 0 0 IDN 0 ABT T0N AMN 0V 0 V 0 0 Status Register 7 654 3 2 1 0 BSY RDY DF DSC DRQ COR IDX ERR 0 V0V - 0 - V The Write Multiple Ext command transfers one or more sectors from the host to the device, and then the data is written to the disk media. This command provides the same function as the Write Multiple Ext command except that the transferred data shall be written to the media before the ending status for this command is reported also when write caching is enabled. Command execution is identical to the Write Sector(s) Ext command except that an interrupt is generated for each block (as defined by the Set Multiple command) instead of for each sector. The sectors are transferred through the Data Register 16 bits at a time. Output parameters to the device Sector Count Current The number of continuous sectors to be transferred low order, bits (7:0) Sector Count Previous The number of continuous sectors to be transferred high order, bits (15:8). If zero is specified, 65,536 sectors shall be transferred. Sector Number Current LBA (7:0) Sector Number Previous LBA (31:24) Cylinder Low Current LBA (15:8) Cylinder Low Previous LBA (39:32) Cylinder High Current LBA (23:16) Cylinder High Previous LBA (47:40) Deskstar T7K500 Hard Disk Drive Specification 258