W_Disable# Signal - VersaLogic Blackbird VL-EPU4562 Hardware Reference Manual

Mini PCIe
Pin
Signal Name
37 GND
38 USB_D+
39 3.3VAUX
40 GND
41 3.3VAUX
LED_WWAN
42
#
43 GND
44 LED_WLAN#
45 NC
46 LED_WPAN#
47 NC
48 1.5V
49 Reserved
50 GND
51 Reserved
52 3.3VAUX
Notes:
1. Some mSATA modules do not leave Pin 43 open.
2. Some Mini PCIe cards use this signal as a second Mini PCIe card wireless disable input. On the
Blackbird, this signal is available for use for mSATA versus Mini PCIe card detection. There is an
option on the VersaLogic Features BIOS Setup utility screen for setting the mSATA detection
method.

W_DISABLE# Signal

The W_DISABLE# signal is for use with optional wireless Ethernet Mini PCIe cards. The signal
enables you to disable a wireless card's radio operation in order to meet public safety regulations
or when otherwise desired. W_DISABLE# is an active low signal that when driven low (shorted
to ground) disables radio operation on the Mini PCIe card wireless device. When W_DISABLE#
is not asserted, or in a high impedance state, the radio may transmit if not disabled by other
means such as software. The W_DISABLE# signals for each of the three Minicards are
controlled by registers in the FPGA.
VL-EPU-4562/4462 Reference Manual
Mini PCIe Function
Ground
USB data +
3.3V auxiliary source
Ground
3.3 V auxiliary source
Wireless WAN LED
mSATA Detect (Note 1)
Wireless LAN LED
Not connected
Wireless PAN LED
Not connected
1.5 V power
Reserved
Ground
Reserved
3.3 V auxiliary source
Multi-purpose I/O
mSATA
mSATA Function
Signal Name
GND Ground
Reserved Not connected
+3.3V 3.3 V source
GND Ground
+3.3V 3.3 V source
Reserved Not connected
GND/NC Ground/Not connected
Reserved Not connected
Vendor Not connected
Reserved Not connected
Vendor Not connected
+1.5V 1.5 V power
DA/DSS Device activity
GND Ground
GND
Ground (Note 2)
+3.3V 3.3 V source
36