Product Features
WD Scorpio ML160M
14
RELEASED 1/16/09 (WD CONFIDENTIAL)
2679-701205-A00
To address this requirement, WD has developed Reduced Power Spinup (RPS) mode.
RPS-enabled drives use minimal power consumption during spin up, allowing a greater range
of compatibility with various systems and cables in the marketplace.
Figure 3-1. RPS Spinup Profile
Note:
Current is 200 mA per 10 mV vertical deflection.
3.3
Ramp Load/Unload (LUL)
LUL is a proven design that parks the recording head when the drive is idle and on spin up,
maximizing available disk space and minimizing power usage, which results in lower transient
acoustics, lower heat, and long-term drive reliability.
3.4
System-on-Chip (SOC)
The System-on-Chip (SOC) is the foundation for WD's next generation electronics and
firmware architecture. The SOC lowers component count by integrating a hard disk controller,
high performance processor, high speed execution SRAM, and read channel in a 128-pin
package. The processor has a 5-stage pipeline which can execute instructions in a single
cycle and a DSP engine for enhanced operations. The SOC has on-chip tightly coupled
memory for high speed code and data execution that maximizes the processing bandwidth for
timing critical operations. It has a high performance disk controller that incorporates maximum
flexibility, modularity, performance, and low power consumption. The read/write channel has
advanced detection capabilities for high-density drives.
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