Apacer Technology AP-SRFD255AXXXXR-G - Manual (Page 6)

Serial ATA Flash Drive
AP-SRFD255AXXXXR-G
6
© 2008 Apacer Technology Inc. Rev 0.2 (Preliminary)
1.3 Mode Configuration
Apacer SRFD supports 4 static pins that can be used to program a normal operating state. The configuration
of each node uses a combination of the Configuration pins and the Pushbutton (Reset) pin.
Table 1-1: Mode Configuration
1.3.1 Definition
The following method can be used to define the configurations.
Configuration pins set to FAST (RAID-0), SAFE (RAID-1):
A.
While the system is powered-up
I.
Any configuration change is ignored
II. Physical drive change rules: no drivers accepted; in SAFE (RAID-1) mode, a single driver change
will be accepted with normal driver rules (larger or equal to existing drive)
B. Upon power-up, but with no pushbutton (reset) press
I.
Any configuration change is ignored
II. Physical drive change rules: no drivers accepted; in SAFE (RAID-1) mode, a single driver change
will be accepted with normal driver rules (larger or equal to existing drive which must be present)
C. Upon power-up and momentary pushbutton (reset) pressed
I.
Only new configuration changes are explicitly accepted (if possible) and all new drives are explicitly
accepted if there is a new configuration
Configuration Pin 1 2 3 4 Mode Example
0100 0 1 0 0 RAID 0
1100 1 1 0 0 RAID 1