(3)Data buffer

1,844 KB buffer is used to transfer data between the EIDE bus and disk. Since data is stored in this buffer, the host can execute input-output processing effectively by using the high-speed data transfer capability of the EIDE bus without regard to the data transfer rate of the optical disk drive.

(4)Read-ahead cache feature

The read-ahead cache feature enables high-speed sequential data access as follows:

After executing a command to read data from the disk, the drive automatically reads the next data block and stores it in the data buffer (pre-reading). If the next command requests this data, the data is transferred from the buffer without another disk access.

(5)Write cache feature

When the host system issues the write command to the optical disk drive, a command complete is usually responded after completion of the write and verify operations. By using the write cache feature, a command complete is responded after completion of the data transfer to the data buffer without waiting the completion of the write and verify operations then the write and verify operations are made asynchronously with the interface operation. Therefore, the apparent write command processing time measured at the host system is reduced and the I/O performance of the host system is improved.

The write cache feature is enabled or disabled by MODE SELECT command.

When the write cache feature is enabled, a write error is reported at the completion status of next command. At a system so that the host retries the command, a retry process may be failed.

(6)Defective block slipping

When a disk is initialized, logical data blocks are reallocated in a physical sequence by slipping defective data blocks. This enables high-speed continuous data block processing without rotational delay due to defective data blocks.

(7)Device driver software (1.3 GB optical disk media)

The optical disk drive requires more extended processing time than conventional optical device drives because of higher density. Consequently, a processing time timeout when using the OS can occur and this requires special device driver software.

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Fujitsu MCE3130AP, MCF3064AP, MCE3064AP manual
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MCE3130AP, MCE3064AP, MCF3064AP specifications

The Fujitsu MCF3064AP, MCE3064AP, and MCE3130AP are notable models in the realm of semiconductor technology and memory solutions. Each of these integrated circuits brings distinct features, technologies, and capabilities to various applications in modern electronics.

Starting with the MCF3064AP, this dynamic RAM device is built to provide efficient memory management and performance. It has a capacity of 64 kilobits, making it an ideal solution for early computer systems, embedded applications, and industrial electronics. The key characteristic of this chip is its fast access time, which facilitates quicker data retrieval and enhances overall system performance. The MCF3064AP supports a standard 16-pin DIP package, making it compatible with a variety of circuit designs, simplifying integration into existing systems.

On the other hand, the MCE3064AP also offers a 64 kilobit memory capacity but comes with enhanced features aimed at improving power efficiency and performance stability. This version is well suited for battery-operated devices where power consumption is a critical consideration. With its advanced static RAM architecture, the MCE3064AP ensures lower power usage while maintaining high-speed performance. Its operational characteristics allow it to function seamlessly over various temperature ranges, making it suitable for diverse application environments.

Lastly, the MCE3130AP distinguishes itself by offering an increased memory capacity of 128 kilobits. This model is tailored for applications that require higher data storage, such as telecommunications and networking equipment. The MCE3130AP employs sophisticated memory technology that not only optimizes data transfer rates but also enhances durability and reliability. It features an optimized pin configuration allowing easy integration into modern systems, along with advanced error detection and correction functionalities, ensuring data integrity across critical applications.

Collectively, the Fujitsu MCF3064AP, MCE3064AP, and MCE3130AP exemplify innovations in memory technology, catering to a wide range of electronic applications. Their distinctive features, varying capacities, and high-performance characteristics make them essential components in the advancement of computing systems and electronic devices. As technology continues to evolve, these semiconductor solutions from Fujitsu pave the way for more efficient, reliable, and powerful electronic systems.
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