3 product features, Functional/interface, Zone density recording – Maxtor D540X-4G User Manual
Page 14: Read/write multiple mode, Ultradma-mode 5, Multi-word dma-mode 2, Sector address translation, 3 product features -2

Product Description
2-2
Maxtor D540X-4G
Note:
Maxtor defines 1 Gigabyte (GB) as 10
9
or 1,000,000,000 bytes of data.
Total accessible capacity varies depending on operating environment.
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Maxtor hard drives contain all necessary mechanical and electronic parts to interpret
control signals and commands from an AT-compatible host computer. See Chapter 3
Product Specifications, for complete drive specifications.
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The disk capacity is increased with bit density management – common with Zone
Density Recording. Each disk surface is divided into 16 circumferential zones. All
tracks within a given zone contain a constant number of data sectors. The number
of data sectors per track varies in different zones; the outermost zone contains the
largest number of data sectors and the innermost contains the fewest.
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This mode is implemented per ANSI ATA/ATAPI-6 specification. Read/Write
Multiple allows the host to transfer a set number of sectors without an interrupt
request between them, reducing transfer process overhead and improving host
performance.
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Maxtor hard drives fully comply with the new ANSI Ultra DMA protocol, which
greatly improves overall AT interface performance by significantly improving burst
and sustained data throughput.
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Supports multi-word Direct Memory Access (DMA) mode transfers.
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All Maxtor hard drives feature a universal translate mode. In an AT/EISA-class
system, the drive may be configured to any specified combination of cylinders,
heads and sectors (within the range of the drive's formatted capacity). Maxtor hard
drives power-up in a translate mode:
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4G120J6
238,216
16
63
240,121,728
122.9GB
4G160J8
317,632
16
63
320,173,056
163.9GB