Hardware
Rev 2 Oct.19
35
41113116
2.7 Expansion Connector Interfaces
The mangOH Yellow provides an expansion connector (CN805), that can be used to connect an external device to
the mangOH Yellow. The external device can be powered by the mangOH Yellow, or the mangOH Yellow can be
powered by the external device.
The default configuration (enabled signals) for the expansion connector is shown in
The Expansion Connector interface configuration can be modified as detailed in
.
Figure 2-26: Expansion Connector Configuration
Table 2-10: Expansion Connector Interface Configuration Changes
Change type
Change effect
Method
Change duration
Hardware
•
Jumper on CN801 pins 1–2 —
Select CF3 Client USB power
•
Jumper on CN801 pins 2–3—
Select Expansion Connector
power (or CON USB connector if
resistor populated/
depopulated—see next row for
details).
Position jumper on CN801 to
choose Client USB or
Expansion Connector to supply
power.
Note:
mangOH Yellow ships
with USB power connector
selected (jumper on pins closest
to USB connector).
mangOH Yellow uses the
selected power supply until the
jumper changes.
•
Use CON USB connector for
power instead of Expansion
Connector.
Populate R809, depopulate
R800
Permanent
(Power from CN805 supplied to mangOH Yellow)
CF3
Expansion Connector
(CN805)
SPI2
Input Power
ADC
GPIO
(Power supplied from mangOH Yellow to CN805)
USB-SPI
Bridge
USB Hub
(U703)
HSIC
I2C
I2C Expander
I2C1
ADC2
UART
UART1
VCC_3V3
VIN_CONN
GPIO_24
Output Power
Reset
GPIO6
LOWPOWER _RESET
SYSTEM _RESET
Reset button (SW401)
GPIO
GPIO_33
Note: Default configuration — Solid lines
Alternate configuration — Dashed lines
