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Toshiba Corporation Digital Media Network Company
Page 138 of 157
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10.8.45.4.2.3 Word 2: Ultra DMA modes supported
Word 2 bits 15:6 are reserved.
Word 2 bit 5 is cleared to disable support for Ultra DMA mode 5 and has the effect of clearing bit 5 in word 88 of
the IDENTIFY DEVICE or IDENTIFY PACKET DEVICE response. This bit shall not be cleared if Ultra DMA
mode 5 is currently selected.
Word 2 bit 4 is cleared to disable support for Ultra DMA mode 4 and has the effect of clearing bit 4 in word 88 of
the IDENTIFY DEVICE or IDENTIFY PACKET DEVICE response. This bit shall not be cleared if Ultra DMA
mode 5 is supported or if Ultra DMA mode 5 or 4 is selected.
Word 2 bit 3 is cleared to disable support for Ultra DMA mode 3 and has the effect of clearing bit 3 in word 88 of
the IDENTIFY DEVICE or IDENTIFY PACKET DEVICE response. This bit shall not be cleared if Ultra DMA
mode 5 or 4 is supported or if Ultra DMA mode 5, 4, or 3 is selected.
Word 2 bit 2 is cleared to disable support for Ultra DMA mode 2 and has the effect of clearing bit 2 in word 88 of
the IDENTIFY DEVICE or IDENTIFY PACKET DEVICE response. This bit shall not be cleared if Ultra DMA
mode 5, 4, or 3 is supported or if Ultra DMA mode 5, 4, 3, or 2 is selected.
Word 2 bit 1 is cleared to disable support for Ultra DMA mode 1 and has the effect of clearing bit 1 in word 88 of
the IDENTIFY DEVICE or IDENTIFY PACKET DEVICE response. This bit shall not be cleared if Ultra DMA
mode 5, 4, 3, or 2 is supported or if Ultra DMA mode 5, 4, 3, 2, or 1 is selected.
Word 2 bit 0 is cleared to disable support for Ultra DMA mode 0 and has the effect of clearing bit 0 in word 88 of
the IDENTIFY DEVICE or IDENTIFY PACKET DEVICE response. This bit shall not be cleared if Ultra DMA
mode 5, 4, 3, 2, or 1 is supported or if Ultra DMA mode 5, 4, 3, 2, 1, or 0 is selected.
10.8.45.4.2.4 Words 3-6: Maximum LBA address
Words 3 through 6 define the maximum LBA address. This shall be the highest address accepted by the device
after execution of the command. When this value is changed, the content of IDENTIFY DEVICE words 60, 61
100, 101, 102, and103 shall be changed as described in the SET MAX ADDRESS and SET MAX ADDRESS
EXT command descriptions to reflect the maximum address set with this command. This value shall not be
changed and command aborted shall be returned if a Host Protected Area has been established by the
execution of a SET MAX ADDRESS or SET MAX ADDRESS EXT command with an address value less than
that returned by a READ NATIVE MAX ADDRESS or READ NATIVE MAX ADDRESS EXT command.. Any data
contained in the Host Protected Area is not affected.
10.8.45.4.2.5 Word 7: Command/features set supported
Word 7 bits 15:9 are reserved.
Word 7 bit 8 is cleared to disable support for the 48-bit Addressing feature set and has the effect of clearing bit
10 in words 83 and 86 and clearing the value in words 103:100 of the IDENTIFY DEVICE or IDENTIFY PACKET
DEVICE response.
Word 7 bit 7 is cleared to disable support for the Host Protected Area feature set and has the effect of clearing
bit 10 in words 82 and 85 and clearing bit 8 in words 83 and 86 of the IDENTIFY DEVICE or IDENTIFY PACKET
DEVICE response. If a Host Protected Area has been established by use of the SET MAX ADDRESS command,
these bits shall not be cleared and the device shall return command aborted.
Word 7 bit 6 is cleared to disable for the Automatic Acoustic Management feature set and has the effect of
clearing bit 9 in word 83 and word 94 of the IDENTIFY DEVICE or IDENTIFY PACKET DEVICE response.
Word 7 bit 5 is cleared to disable support for the READ DMA QUEUED and WRITE DMA QUEUED commands
and has the effect of clearing bit 1 in words 83 and 86 of the IDENTIFY DEVICE or IDENTIFY PACKET DEVICE
response.