Specifications
Table Of Contents
- 1.0 Introduction
- 2.0 Drive specifications
- 2.1 Specification summary table
- 2.2 Formatted capacity
- 2.3 Default logical geometry
- 2.4 Physical organization
- 2.5 Recording and interface technology
- 2.6 Physical characteristics
- 2.7 Seek time
- 2.8 Start/stop times
- 2.9 Power specifications
- 2.10 Environmental specifications
- 2.11 Acoustics
- 2.12 Electromagnetic immunity
- 2.13 Reliability
- 2.14 Agency certification
- 3.0 Configuring and mounting the drive
- 4.0 ATA interface
- 5.0 Seagate Technology support services
- Index
U Series 9 ce Product Manual, Rev. F 21
4.0 ATA interface
These drives use the industry-standard ATA task file interface that supports 16-bit data transfers. It supports
ATA programmed input/output (PIO) modes 0–4; multiword DMA modes 0–2, and Ultra DMA modes 0–5. The
drive also supports the use of the IORDY signal to provide reliable high-speed data transfers.
You can use a daisy-chain cable to connect two drives to a single AT host bus. For detailed information about
the ATA interface, refer to the draft of AT Attachment with Packet Interface Extension (ATA/ATAPI-6), NCITS
T13 1410D, subsequently referred to as the Draft ATA-6 Standard.
4.1 ATA interface signals and connector pins
Figure 1 on page 22 summarizes the signals on the ATA interface connector that the drive supports. For a
detailed description of these signals, refer to the Draft ATA-6 Standard.