Nfc Expansion Header J2401 - Intrinsyc Open-Q 670 HDK User Manual

Open-Q™ 670 HDK Hardware Development Kit User Guide Version 1.0
Table 3.8-7 Sensor Expansion Header J2501 Pin out
Description
SSC I2C1 serial data
SSC I2C1 serial clock
Sensor reset signal
from processor to
sensor via GPIO44
Sensor IO PWR 1.8 V
VREG_LVS2A_1P8
power supply
regulator (Digital)
GND
HRM interrupt/
configurable
GPIO122
SSC SPI-1 chip
select 2
MISC GPIO for
sensor via GPIO43
NC
SSC SPI-1 chip
select 1
SSC SPI-1 clock
NC
In summary, if sensor application is not needed, this expansion header can provide
SSC SPI1 and I2C. Please refer to the schematic and consider the power before
connecting anything to this header.

3.8.2.6 NFC Expansion Header J2401

Signal Pin NO
SSC_I2C1_SD J2501[1]
A
SSC_I2C1_SC J2501[3]
L
MEMS_RESE J2501[5]
T_N
SENS_IO_PW J2501[7]
R
GND J2501[9]
HRM_INT J2501[11]
SSC_SPI1_CS J2501[13]
1_N
SDA_GPIO J2501[15]
NC J2501[17]
SSC_SPI1_CS J2501[19]
0_N
SSC_SPI1_CL J2501[21]
K
NC J2501[23]
Figure 3-12 J2401 NFC EXPANSION HEADER
Copyright Intrinsyc Technologies Corporation
Description
Accelerometer interrupt
input to processor via
GPIO117
Cap interrupt input to
processor via GPIO123
Gyroscope interrupt
input to processor via
GPIO118
Sensor Analog power
supply from
VREG_L19A 2.85V or
3.3V
GND
Touch screen interrupt
input from processor via
GPIO125
ALS/P sensor interrupt
input to processor via
GPIO120
Digital Compass
interrupt input to
processor via GPIO119
Hall sensor interrupt
input to processor via
GPIO124
SSC SPI-1 data master
out/ slave in
SSC SPI-1 data master
in/ slave out
SSC SPI-1 chip select 3
24
Signal Pin NO
ACCEL_INT J2501[2]
PRESS_INT_N J2501[4]
GYRO_INT J2501[6]
SENS_ANA_P J2501[8]
WR
GND J2501[10]
TS_INT_N J2501[12]
ALSP_INT_N J2501[14]
MAG_DRDY_IN J2501[16]
T
HALL_INT_N J2501[18]
SSC_SPI_1_M J2501[20]
OSI
SSC_SPI_1_MI J2501[22]
SO
SSC_SPI1_CS2 J2501[24]
_N