IBM IC25N020ATDA04 Hard Drive Specifications - Page 139
Identify Device ECh
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13.8 Identify Device (ECh) 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 1 0 0 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 Error Register 7 6 5 4 3 210 CRC UNC 0 IDN 0 ABT T0N AMN 0 0 0 0 0 V00 Status Register 7 6 5 4 3 2 10 BSY RDY DF DSC DRQ COR IDX ERR 0 V 0 - - 0 -V Figure 85. Identify Device command (ECh) The Identify Device command requests the device to transfer configuration information to the host. The device will transfer a sector to the host containing the information in Figure 86 beginning on the next page. Travelstar 48GH, 30GN & 15GN hard disk drive specifications 125