AT2550 User Guide
December 8, 2003
page 8 of 17
3.2.3 CABLE SELECT
Jumper CS can be used to let the IDE Cable Select signal select the drive
configuration as either the master or slave device. Shorting the CS pin to the MS
pin enables the Cable Select feature. Leaving the pins unconnected disables the
Cable Select feature. The drive is factory shipped with these pins open.
CS: Cable Select
configured for normal
operation -- jumper off
MS
CS
3.2.4 OPTION HEADER J2
The Option Header is located on the LED-side of the drive, as illustrated below:
J2 Option Jumpers,
2x6, 2mm
WP
OPT1
OPT2
TX
LED
RX
XP
GND
Jumper Header – J2
