Bosch Sensortec Application Board 3.0 User Manual page 12

Bosch Sensortec |
SPI-FLASH
I2C-TEMP
BTN-CTRL
LED-CTRL
PWR-CTRL
BAT-MEAS
Modifications reserved | Data subject to change without notice
Arrow.com.
Downloaded from
Application Board 3.0 User Guide
SPI-FLASH-MISO GPIO_48
SPI-FLASH-MOSI GPIO_50
SPI-FLASH-SCK GPIO_52
SPI-FLASH-CS GPIO_51
SPI-FLASH-HOLD GPIO_47
SPI-FLASH-WP GPIO_49
I2C-TEMP-SDA GPIO_23
I2C-TEMP-SCL GPIO_42
BTN-T1 GPIO_33
BTN-T2 GPIO_7
LED-RED GPIO_45
LED-BLUE GPIO_46
LED-GREEN GPIO_32
VDD-SEL GPIO_44
VDD-EN GPIO_16
VDDIO-EN GPIO_17
VBAT-MON-EN GPIO_18
VBAT-MON GPIO_20
P0.21
P0.20
P0.19
P0.17
P0.23
P0.22
P0.29 4.7kohm pull-up
P0.26 4.7kohm pull-up
P1.09 Active low. When activated, connected
to ground through a 360ohm resistor
P0.25 Active low. When activated, connected
to ground through a 360ohm resistor
P0.07 Active low. Connected to 2.8V through
a 100ohm resistor
P0.12 Active low. Connected to 2.8V through
a 33ohm resistor
P0.11 Active low. Connected to 2.8V through
a 10ohm resistor
P0.27 When low, 1.8V is routed to Vdd and
2.8V when high
P0.03 Routes selected Vdd voltage to the
Shuttle's Vdd pin when high and routes
Ground when low
P0.28 Routes 1.8V to the Shuttle's VddIO pin
when high and routes Ground when low
P0.02 Active low. When activated, connects
the Li-ion anode to the voltage divider
P0.31 Output of the voltage divider. 3V is read
as 1.125V and 4.2V as 1.575V. R1 is
300kohm and R2 is 180kohm
12 | 24
Document number: BST-DHW-AN008-00