SSC7150
DS00001885A-page 6 2015 Microchip Technology Inc.
1.5 Pin Description
1.5.1 OVERVIEW
The following tables describe the signal functions in the SSC7150 pin configuration. See Section 1.6, "Notes for Tables
in this Chapter," on page 7 for notes that are referenced in the Pin Description tables.
1.5.2 HOST INTERFACE
The SSC7150 can be used with an I
2
C host interface. The pins required for each interface are shown in Ta ble 1- 3 and
Table 1-4. See the associated Notes for board connection information for the unused interface.
TABLE 1-3: I
2
C HOST INTERFACE
1.5.3 I
2
C SENSOR INTERFACE
TABLE 1-4: I
2
C SENSOR INTERFACE
1.5.4 MISCELLANEOUS FUNCTIONS
TABLE 1-5: MISCELLANEOUS FUNCTIONS
I2C Interface Signals
Pin Ref. Number Signal Name Description Notes
4 I2C_CL2 I2C Controller Clock to Host Interface
3 I2C_DA2 I2C Controller Data to Host Interface
13 I2C2_ALERT#
Alert Interrupt signal from motion coprocessor
to Host. Used to tell Host data from motion
coprocessor is ready to be sent out. Active low
output.
7 I2C_D2_W AKE#
Used to wake the motion coprocessor from a
low power state due to host I2C
communication. Active low input. Connect to
I2C_DA2.
8 I2C2_W AKE
Used to wake motion coprocessor from a Sleep
state. This signal must be driven high at least
11ms prior to sending any I2C traffic to the
motion coprocessor. Active high input.
27 I2C2_RESET#
Reset input. Used to reset the host I2C
interface.
I2C Sensor Interface
Pin Ref. Number Signal Name Description Notes
14 I2C_CL1 I2C Controller Clock to Sensor Interface
15
I2C_DA1
I2C Controller Data to Sensor Interface
Miscellaneous Functions
Pin Ref. Number Signal Name Description Notes
26 MCLR# Master Clear (Reset) Input Note 1
9 VSENSOR_EN Sensor voltage switch control output.
1, 2, 6, 11, 18, 19, 21,
Pins labelled NC should be left unconnected on
