Connection SPI
The following figure shows a reference circuit for connecting the NP5 SPI.
Note: For the standard assignment of the connections, see Pin assignment.
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PCI-specific pin assignment for SPI:
|
Pin |
Name |
Description/function |
|---|---|---|
| A15 | SLOT_SPI_MOSI |
SLOT_SPI |
| A16 | SLOT_SPI_MISO |
SLOT_SPI |
| A17 | SLOT_SPI_SCK |
SLOT_SPI |
| A18 | SLOT_SPI_CS |
SLOT_SPI |
| A19 | COMM_SPI_MOSI |
COMM_SPI |
| A20 | COMM_SPI_MISO |
COMM_SPI |
| A21 | COMM_SPI_SCK |
COMM_SPI |
| A22 | COMM_SPI_CS |
COMM_SPI |
Bus topology
The SPI bus uses the SCK (source clock), MOSI (master out, slave in), MISO (master in, slave out) and CS (chip select) cables.
