Pni Legacy Comm Board Manual de usuario descargar pdf (Pagina 30)

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SPI Hardware Handshaking Line Descriptions

SYNC

SYNC is usually low. SYNC must be toggled from low-high-low. This is the SPI reset. This line is used to reset

the SPI slave when communications get out of synchronization. SYNC is normally used during the module

startup.

DRDY – Data Ready

The module returns DRDY. DRDY is low after a SYNC. Once a command has been received and the data is read,

DRDY goes high. This is only used with modules that do not have processor.

NOTE:

See the applicable PNI module data sheet for specific information on communication and control using

the SPI interface

CommBoard

SPI Interface to Sensor Module

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Pni Legacy Comm Board Manual de usuario Pagina 30