
PNI Sensor Corporation Doc 1017252 r03
RM3100 & RM2100 Sensor Suite User Manual Page 20 of 45
Table 4-1: MagI2C Pin Assignments
SPI interface (MOSI) – Master Output, Slave Input Serial Data
I
2
C interface (SDA) – Serial Data Line
Reserved – connect to ground
SPI interface – Active low to select port
I
2
C interface – Bit 0 of MagI2C’s slave address
Supply voltage for analog section of ASIC
Ground pin for analog section of ASIC
Z sensor measurement input
Z sensor measurement input
Y sensor measurement input
Y sensor measurement input
Supply voltage for digital section of ASIC.
X sensor measurement input
X sensor measurement input
Ground pin for digital section of ASIC
Reserved – connect to ground
I
2
C enable pin (HIGH = I
2
C, LOW = SPI)
External timing resistor for high speed clock.
Supply voltage for digital section of ASIC.
SPI interface (SCLK) – Serial clock input
I
2
C interface (SCL) – Serial clock line
SPI interface (MISO) – Master Input, Slave Output
I
2
C interface – Bit 1 of MagI2C’s slave address
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