Hitachi 7K400 Specifications - Page 128
Con Stream 51h
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UPC - 000053412935
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12.2 Configure Stream (51h) Table 78: Configure Stream Command (51h) Command Block Output Registers Register 7 6 5 4 3 2 1 0 Data Low Data High Feature Current V V - - - V V V Previous V V V V V V V V Sector Count Current V V V V V V V V Previous V V V V V V V V Sector Number Current Previous Cylinder Low Current Previous Cylinder High Current Previous Device/Head 1 1 1 D - - - - Command 0 1 0 1 0 0 0 1 Command Block Input Registers Register Data Low Data High Error 7 6 5 4 3 2 1 0 See Below... Sector Count Sector Number Cylinder Low Cylinder High Device/Head Status HOB=0 HOB=1 HOB=0 HOB=1 HOB=0 HOB=1 HOB=0 HOB=1 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 00 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 Configure Stream command specifies the operating parameters of an individual stream. A Configure Stream command may be issued for each stream that is to be added or removed from the current operating configuration. If A/R = 1 and the specified ID is already valid at the device, the new parameters shall replace the old parameters, unless Command Abort is returned (see abort conditions for Error Register). In this case the old parameters for the specified Stream ID shall remain in effect. Output Parameters To The Device Feature Current bit 7 (A/R) Feature Current bit 6 (R/W) If set to one, a request to add a new stream. If cleared to zero, a request to remove a previous configured stream is specified. R/W specifies a read stream if cleared to zero and a write stream if set to one. Feature Current bit 0..2 (Stream ID) The Stream ID shall be a value between 0 and 7. Deskstar 7K400 Hard Disk Drive Specification 114
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