Datasheet

To use the first 6 GPIOs, place a jumper between JP3 and JP4 for the specific GPIO.
Table 8 General Purpose I/O Signal Description
Evaluation
Daughtercard
GPIO
CN210
GPIO
I/O Drive
High/Low
Description
1 2 I/O 6/6 mA Set as input or output
2 3 I/O 6/6 mA Set as input or output
3 4 I/O 6/6 mA Set as input or output
4 5 I/O 6/6 mA Set as input or output
5 6 I/O 6/6 mA Set as input or output
6 7 I/O 6/6 mA Set as input or output
7 48 I
or
I/O
6/6 mA Switch input (Test Button)
1 = off
0 = switch depressed
8 49 O
or
I/O
6/6 mA LED_1
1= off
0 = illuminated
9 50 O
or
I/O
6/6 mA LED_2 or used as a GPIO
1= off
0 = illuminated
10 51 O
or
I/O
6/6 mA LED_3 or used as a GPIO
1= off
0 = illuminated
43 O 6/6 mA For Manufacturing use only. Do not
Connect.
44 O 6/6 mA Ethernet PHY
1 = power down
0 = off (default)
47 O 6/6 mA Ethernet PHY
1 = not reset (default)
0 = reset#
52 I 6/6 mA PCI_LED2YP input
53 I 6/6 mA PCI Power Management Event# input
54 O 6/6 mA PCI Clock
1 = clock off
0 = run# (default)
Part Number 40183-101 Silex SX-550 Developer's Guide Page 14