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Adtron I35MB Operations Manual
Rev. 003, PN: 610200094
3
Setting Master/Slave and Cable Select
This IDE jumper is only for the configuration of master, slave, cable select and to
mount a remote Activity LED. Figure 3 shows the pins of the IDE jumper on the
I35MB.
1
3
4
2
5
6
1
3
4
2
5
6
1
3
4
2
5
6
Master Setting
Slave Setting
Cable Select Setting
4
4
2
2
7
8
7
8
7
8
Figure 3 IDE Jumper
When a jumper is placed on pins 3 and 4, the I35MB is the master device (default).
With a jumper placed on pins 1 and 2, the I35MB is the slave device. When a jumper
is placed on pins 1 and 3, the cable select configuration is utilized. Refer to the above
Figure for pins and jumper placements.
Setting a Remote-Mounted Activity LED
A remote-mounted Activity LED may be used with the I35MB. Refer to Figure 4 for
the pin location and setting.
1
3
4
2
5
6
+3.3V
-EXTLED
Through 120 ohm on-board resistor
7
8
Figure 4 I35MB Remote LED
Pins 5 and 6 in Figure 4 are used for a remote-mounted Activity LED. Pin 6 runs
through a 120 Ohm resistor to +3.3V. See the I35MB Product Specification for signal
descriptions.