PNI RM3100 Sensor Suite - Manual (Page 21)

PNI Sensor Corporation Doc 1017252 r03
RM3100 & RM2100 Sensor Suite User Manual Page 20 of 45
Table 4-1: MagI2C Pin Assignments
Pin# Pin Name Description
1
MOSI /
SDA
SPI interface (MOSI) – Master Output, Slave Input Serial Data
I
2
C interface (SDA) – Serial Data Line
2 RES Reserved – connect to ground
3
SSN /
SA0
SPI interface – Active low to select port
I
2
C interface – Bit 0 of MagI2C’s slave address
4 AV
DD
Supply voltage for analog section of ASIC
5 AV
SS
Ground pin for analog section of ASIC
6 Z
DRVP
Z sensor drive output
7 Z
INP
Z sensor measurement input
8 Z
INN
Z sensor measurement input
9 Z
DRVN
Z sensor drive output
10 Y
DRVP
Y sensor drive output
11 Y
INP
Y sensor measurement input
12 Y
INN
Y sensor measurement input
13 Y
DRVN
Y sensor drive output
14 DV
DD
Supply voltage for digital section of ASIC.
15 X
DRVP
X sensor drive output
16 X
INP
X sensor measurement input
17 X
INN
X sensor measurement input
18 X
DRVN
X sensor drive output
19 DV
SS
Ground pin for digital section of ASIC
20 RES Reserved – connect to ground
21 NC Do not connect
22 I2CEN I
2
C enable pin (HIGH = I
2
C, LOW = SPI)
23 DRDY Status line
24 NC Do not connect
25 R
EXT
External timing resistor for high speed clock.
26 DV
DD
Supply voltage for digital section of ASIC.
27
SCLK /
SCL
SPI interface (SCLK) – Serial clock input
I
2
C interface (SCL) – Serial clock line
28
MISO /
SA1
SPI interface (MISO) – Master Input, Slave Output
I
2
C interface – Bit 1 of MagI2C’s slave address