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ML54053

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6.7 Modes

6.7.1

Memory Mapped

In the memory mapped mode, ATA registers appear in the 0 to 2K window of common memory

space.

6.7.2

I/O Mapped 16 Contiguous Registers

In the I/O mapped 16 contiguous registers mode, contiguous ATA registers appear in I/O space.

6.7.3

Primary I/O Mapped

In the primary I/O mapped mode, ATA registers appear in 1F0h to 1F7h and 3F6h to 3F7h of the

standard I/O address space.

6.7.4

Secondary I/O Mapped

In the secondary I/O mapped mode, ATA registers appear in 170h to 177h and 376h to 377h of

the standard I/O address space.

6.7.5

True IDE

This mode is compatible with True IDE Mode.