Data Format

3.1.2Alternate spare area

The alternate spare area consists of the last track of each cell in the user space and an alternate cylinder allocated to the last cylinder of each zone.

The spare area in each cell is placed at the end of the last track as shown in Figure 3.2. These spare sectors are located in the end of the track logically, not necessarily located at the end physically because of track skew or cylinder skew. (Details are explained on Subsection 3.1.3.)

Size can be specified by the MODE SELECT command.

The number of spare sectors per cell can be specified from 0 to 200. The default for the spare sectors number is 200.

Cell

Note: This drive manages alternate spare areas for each cell, which is a set of cylinders. One cell consists of 27 cylinders.

Figure 3.2 Spare area in cell

An alternate cylinder is used when spare sectors in a cell are used up or 0 is specified as the number of spare sectors in a cell. 1 cylinder at the end of each zone of the user space is allocated as alternate cylinders as shown in Figure 3.3.

The user space and the CE space share the alternate cylinders.

Zone

Note: The number of alternate cylinders cannot be changed.

Figure 3.3 Alternate cylinder

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Fujitsu MAX3073FC, MAX3036FC, MAX3147FC manual Alternate spare area, Spare area in cell

MAX3147FC, MAX3036FC, MAX3073FC specifications

The Fujitsu MAX3036FC, MAX3073FC, and MAX3147FC are advanced integrated circuits that cater to a variety of high-performance applications, predominantly in the realm of communications and data transmission. Each model comes laden with unique features that help in addressing specific requirements in modern electronic systems.

The MAX3036FC, for instance, stands out due to its robust signal processing capabilities. It is particularly optimized for high-speed data communications, making it an excellent choice for applications that demand minimal latency and high data integrity. This featured IC operates within a wide voltage range, ensuring versatility in different circuit environments. It also adopts technology enabling low power consumption, an essential attribute in battery-operated devices.

In contrast, the MAX3073FC brings a distinct set of features suitable for more specialized applications. Its architecture supports a comprehensive serial data communication framework, making it ideal for designs that utilize various communication protocols, including those in industrial automation and automotive systems. The MAX3073FC supports advanced error correction mechanisms which enhance reliability, ensuring more accurate data transmission even over longer distances.

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