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C156-E227-01EN 1-1
CHAPTER 1 General Description
This chapter describes the features and configuration of the MCM3064AP and
MCM3130AP optical disk drives.
As successors to the MCE3064AP and MCE3130AP optical disk drives, the
MCM3064AP and MCM3130AP optical disk drives (hereafter called the optical
disk drives) achieve high-speed operation while maintaining compatibility with
the MCE3064AP and MCE3130AP.
The flexibility and expandability realized through ATAPI interfaces as well as the
high performance and command sets of the optical disk drives allow the user to
construct disk subsystems featuring advanced functions, high performance, large-
scale storage and high reliability.
1.1 Features
This section describes the features of the optical disk drives in terms of
performance, reliability, maintainability/operability, adaptability, and interface.
1.1.1 Performance and Functions
(1) Half-height standard 90mm(3.5-inch) size (25.4 mm height)
The optical disk drives can be directly connected to the system EIDE bus. The
drive employs the same form factor as that for the 90mm(3.5-inch) 25.4-mm
height hard disk drive.
(2) High-speed data transfer
The MCM3130AP rotates a disk at 3,637 revolutions per minute when a 1.3 GB
disk is used. When other media are used, the speed is 5,455 revolutions per
minute.
The MCM3064AP rotates a disk at 5,455 revolutions per minute.
In the disk drive, the MCM3130AP realizes high-speed data transfers at rates of
3.92 to 6.70 MB/s (1.3 GB) and the MCM3064AP realizes at rates of 3.52 to 5.87
MB/s (640 MB). The data transfer rates on the buses are 16.6 MB/s in PIO mode
4, 16.6 MB/s in multiword DMA mode 2, and 33.3 MB/s in Ultra-DMA mode 2.
The data transfer capacity can be used effectively through a large capacity data
buffer of the optical disk drive.
1.1 Features
1.2 Configuration of Optical Disk Drive