User's Manual l MBa8MPxL UM 0100 l © 2022, TQ-Systems GmbH
Page 29
3.4.4
Status LEDs
The MBa8MPxL offers 21 diagnosis and status LEDs (plus the ones in the RJ45 connectors) to signal the system status.
Table 25:
Status LEDs
Interface
Ref.
Colour
Indication
USB
V127
Green
Status V_VBUS30_H1 (lit when USB 3.0 port 1 is active)
V128
Green
Status V_VBUS30_H2 (lit when USB 3.0 port 2 is active)
V131
Green
Status V_VBUS_OTG (lit when USB 3.0 OTG is active)
USB debug
V143
Green
Status 3.3 V Debug (lit when 3.3 V for FTDI chip is active)
GPIO
V55
Green
Free LED, per light guide at front. Placement option: SPDIF_EXT_CLK
V56
Green
Free LED, per light guide at front. Placement option: SPDIF_IN
V60
Yellow
Free LED, per light guide at front. Placement option: SPDIF_OUT
Power
V3
Green
Status 24 V high-side switch (lit when high-side switch is active)
V4
Green
Status 24 V MBa8MPxL (lit when 24 V for MBa8MPxL is active)
V5
Green
Status 12 V MBa8MPxL (lit when 12 V for MBa8MPxL is active)
V6
Green
Status 5 V MBa8MPxL (lit when 5 V for MBa8MPxL is active)
V7
Green
Status 3.3 V MBa8MPxL (lit when 3.3 V for MBa8MPxL is active)
V8
Green
Status 1.8 V MBa8MPxL (lit when 1.8 V for MBa8MPxL is active)
V9
Green
Status 5 V TQMa8MPxL (lit when 5 V for TQMa8MPxL is active)
V10
Orange
Status 3.3 V SD card (lit when 3.3 V for SD card is active)
V11
Orange
Status 3.3 V TQMa8MPxL (lit when 3.3 V of TQMa8MPxL is active)
V12
Orange
Status 1.8 V TQMa8MPxL (lit when 1.8 V of TQMa8MPxL is active)
LVDS
V111
Green
Indicator LED for LVDS interface
Reset
V59
Red
Reset LED, per light guide at front
PCIe (M.2)
V132
Green
Indicator LED for M.2 devices
V181
Green
Indicator LED for M.2 devices
Ethernet
X66
–
3.4.5
GPIO
All GPIOs provided by the TQMa8MPxL are used as control signals on the MBa8MPxL and are therefore not available.
GPIOs can however be configured from signals available at the pin headers; see chapter 3.3.20.
A complete list of all possible GPIO pins can be found in the i.MX 8M Plus data sheet (1).