Interfaces and Connectors
Lion (VL-EPMe-42) Reference Manual
36
PCIe Mini Card LEDs
Two dual-colored PCIe Mini Card LEDs are provided on the Lion at locations D9 and D10. The
next table lists the states of the LEDs.
Table 22. PCIe Mini Card LED States
LED
Color
Status (when lit)
D9
Green
Activity on Wireless WAN (Note)
Yellow
Activity on Wireless LAN (Note)
D10
Green
Activity on Wireless PAN (Note)
Yellow
Illuminates when the 3.3 V power to the Mini
Card is on. It alerts users to not hot-plug the
Mini Card. By default, Mini Card 3.3V power
stays on when the processor is in sleep
modes.
Note:
These LEDs will illuminate when the associated device is installed
and capable of transmitting. Their function is determined by the installed
device.
Integrator’s Note:
The 3.3 V power to the Mini Card can be controlled by the FPGA. By default, the power is always
on, but there is a register setting that turns this power off in sleep modes. The 1.5 V power is
always turned off in sleep modes.
SPX Expansion Bus
Up to two serial peripheral expansion (SPX) devices can be attached to the Lion at connector J17
using a VL-CBR-0901 cable. The SPX interface provides the standard serial peripheral interface
(SPI) signals: SCLK, MISO, and MOSI, as well as two chip selects, SS0# – SS1#
The +5 V power provided to pin 1 of J17 is protected by a 1 A resettable fuse.
