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

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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

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