Specifications
Page 65
... (Fixed) bit 7 - 0 Number of sectors on multiple command 48 Reserved 49 Capabilities bit 15 - 14 0 = Reserved bit 13 1 = Standby timer values as specified in ATA SPEC supported bit 12 0 = Reserved bit 11 1 = IORDY supported bit 10 1 = IORDY can be disabled bit 9 1 = LBA supported bit 8 1 = DMA supported bit 7 - 0 0 = Retired Value (HEX.) 0040h...
... (Fixed) bit 7 - 0 Number of sectors on multiple command 48 Reserved 49 Capabilities bit 15 - 14 0 = Reserved bit 13 1 = Standby timer values as specified in ATA SPEC supported bit 12 0 = Reserved bit 11 1 = IORDY supported bit 10 1 = IORDY can be disabled bit 9 1 = LBA supported bit 8 1 = DMA supported bit 7 - 0 0 = Retired Value (HEX.) 0040h...