Manual

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