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4-8 Input / Output
MN1940
4.4 SPI interface
DSM setup parameters are changed via an SPI (Serial Peripheral Interface) port. This port
uses a 10-pin IDC header, and connects to a USB port on your PC. The recommended
method of connecting the SPI port to the PC is by using parameter setup cable CBL055-501.
The PC requires a standard USB port.
4.4.1 SPI connector
Location
10-pin IDC header (DSMS17... / DSMS23...)
Additional flying leads (DSMS34...)
Typical mating connector: AMPMODU MT (Amp 102398-3)
Pin Name
Description
1
(NC)
2
(NC)
3
(NC)
4 CS
Chip select
5 GND
Communication ground
6 +5V out
+5 VDC output
7 MOSI
Master Out / Slave In
8 CLK
Clock
9
(NC)
10 MISO
Master In / Slave Out
The +5 VDC output on the SPI connector is used for the setup cable only. This
output is not designed to power external devices.
5 - GND
7 - MOSI
CS
6 - +5 V out
8 - Clock
10 - MISO
4 -
USB cable
to PC
CBL055-501
USB/SPI interface electronics
Figure 12 - SPI interface wiring
10
1
3
5
7
9
2
4
6
8
CAUTION
