Baldor MN1940 - Manual (Page 25)

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Input / Output 4-9 MN1940
4.4.2 SPI signal descriptions
4.4.2.1 +5 V out
This output is a voltage supply for the setup cable only. It is not designed to power any
external devices
4.4.2.2 CLK
The clock is driven by the master and regulates the flow of the data bits. The master may
transmit data at a variety of baud rates. The clock cycles once for each bit that is transferred.
4.4.2.3 MISO
Carries output data from the DSM back to the SPI master. Only one DSM can transmit data
during any particular transfer.
4.4.2.4 CS
This signal is used to turn multiple DSMs on or off.
4.4.2.5 MOSI
Carries output data from the SPI Master to the DSM.