Bravo HW User Guide
1VV0301646 Rev. 1
Page
21
of
47
2020-03-23
SPI Connector
Figure 9 - SPI Circuit
The ME910 SPI interface pins are available on J16 connector, the U10 level translator
port A is powered at the same voltage as the MCU IOs.
The SPI Level translator B port is powered by +3V3 or VAUX_1V8 by shortening the 8,7
or 7,6 pin of J16
Outputs Switch to 3-State if either VCC is at GND or OE is high.
Shorted Pins
Function
Comment
Translator Enable J15
1,2
Level Translator to 3-State
6,7
Level Translator normal operation
Shorted Pins
Function
Comment
B Port Level Selection J16
7,8
+3V3 on SPI_POWER
6,7
VAUX_1V8 on SPI_POWER
Pin
Signal
I/O
Function
Type
Comment
POWER SUPPLY
J16,8
+3V3
J16,7
SPI_PWR
External Interface Voltage
