Seagate ST3320311CS Pipeline HD Series SATA Product Manual - Page 34

Serial ATA Interface www.seagate.com Table 8 Identify Device commands (Continued) Word Description Value 47 (Bits 7-0) Maximum sectors per interrupt on Read multiple and 8010H Write multiple (16) 48 49 50 51 52 53 54 55 56 57-58 59 Reserved Standard Standby timer, IORDY supported and may be disabled ATA-reserved PIO data-transfer cycle timing mode Retired Words 54-58, 64-70 and 88 are valid Number of current logical cylinders Number of current logical heads Number of current logical sectors per logical track Current capacity in sectors Number of sectors transferred during a Read Multiple or Write Multiple command 0000H 2F00H 4000H 0200H 0200H 0007H xxxxH xxxxH xxxxH xxxxH xxxxH 60-61 Total number of user-addressable LBA sectors available (see Section 2.2 for related information) *Note: The maximum value allowed in this field is: 0FFFFFFFh (268,435,455 sectors, 137 Gbytes). Drives with capacities over 137 Gbytes will have 0FFFFFFFh in this field and the actual number of user-addressable LBAs specified in words 100-103. This is required for drives that support the 48-bit addressing feature. 0FFFFFFFh* 62 Retired 63 Multiword DMA active and modes supported (see note following this table) 0000H xx07H 64 Advanced PIO modes supported (modes 3 and 4 supported) 0003H 65 Minimum multiword DMA transfer cycle time per word (120 nsec) 0078H 66 Recommended multiword DMA transfer cycle time per word 0078H (120 nsec) 67 68 69-74 75 76 77 78 79 80 Minimum PIO cycle time without IORDY flow control (240 nsec) Minimum PIO cycle time with IORDY flow control (120 nsec) ATA-reserved Queue depth Serial ATA capabilities Reserved for future Serial ATA definition Serial ATA features supported Serial ATA features enabled Major version number 0078H 0078H 0000H 001FH xxxxH xxxxH xxxxH xxxxH 01F0H 34 Pipeline HD SATA Product Manual, Rev. D