IBM DTLA-305040 Hard Drive Specifications - Page 128

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 described in the figure below. Ÿ The Content field indicates vendor specific use of those parameters. Word 00 01 02 03 04 05 06 07 08 09 10-19 20 21 22 23-26 27-46 47 48 49 Content 045AH or 045EH xxxxH 37C8H 00xxH 0Ÿ 0Ÿ 003FH 0000H Ÿ 0000H Ÿ 0000H Ÿ XXXX 0003H Ÿ XXXXH Ÿ 0028H Ÿ XXXX XXXX 8010H 0000H xF00H Ÿ Description Drive classification, bit assignments: 15(=0): 1=ATAPI device, 0=ATA device 14- 8 : retired 7(=0): 1=removable cartridge drive 6(=1): 1=fixed drive 5- 3 : retired 2(=0): 1=soft sectored 1 : retired 0(=0): Reserved Number of cylinders in default translate mode Specific Configuration 37C8H: Need Set Feature for spin-up after power-up Identify Device is incomplete Number of heads in default translate mode Reserved Reserved Number of sectors per track in default translate mode Number of bytes of sector gap Number of bytes in sync field Reserved Serial number in ASCII (0 = not specified) Controller type: 0003: dual ported, multiple sector buffer with look- ahead read Buffer size in 512-byte increments Number of ECC bytes (Vendor unique length selected via set feature cmd) Microcode version in ASCII Model number in ASCII 15-8 80h 7-0 Maximum number of sectors that can be trans ferred per interrupt on Read and Write Multiple commands Reserved Capabilities, bit assignments: 15-14 (=0) Reserved 13 Standby timer (=1) values as specified in ATA standard are supported (=0) values are vendor specific 12 (=0) Reserved 11 (=1) IORDY supported 10 (=1) IORDY can be disabled 9 (=1) Reserved 8 (=0) Reserved 7-0 (=0) Reserved Figure 92. Identify Device Information (1 of 6) Deskstar 40GV & 75GXP hard disk drive specifications 116