Serial ATA Flash Drive
APS25AXXxxxx-XTX
9
©2014 Apacer Technology Inc. Rev. 1.3
3.6 TRIM
TRIM is a SATA command that helps improve the read/write performance and efficiency of solid-state drives
(SSD). The command enables the host operating system to inform SSD controller which blocks contain invalid
data, mostly because of the erase commands from host. The invalid will be discarded permanently and the
SSD will retain more space for itself.
3.7 SATA Power Management
By complying with SATA 6.0 Gb/s specifications, the SSD supports the following SATA power saving modes:
ACTIVE: PHY ready, full power, Tx & Rx operational
PARTIAL: Reduces power, resumes in under 10 µs (microseconds)
SLUMBER: Reduces power, resumes in under 10 ms (milliseconds)
HIPM: Host-Initiated Power Management
DIPM: Device-Initiated Power Management
AUTO-SLUMBER: Automatic transition from partial to slumber.
Device Sleep (DevSleep or DEVSLP): PHY powered down; power consumption 5 mW; host assertion
time 10 ms; exit timeout from this state 20 ms (unless specified otherwise in SATA Identify Device
Log).
Note:
1. The behaviors of power management features would depend on host/device settings.
2. Device Sleep mode is optional, depending on product ordering selections.
