Datasheet

The LS1046A SPI signals are on 1.8 V (OVDD) and they are converted to 3.3 V level using level translators.
NOTE
The table below describes chip select mapping for FRWY-LS1046A SPI interface.
Table 17. SPI chip select mapping
Chip select Connected device
SPI_PCS0
MikroBUS socket
SPI_PCS1
Expansion header
SPI_PCS2 Expansion header
SPI_PCS3 Expansion header
The table below shows pinout details of SPI expansion header J66.
Table 18. SPI expansion header J66 pinout
Pin number SPI signals Direction with respect to LS1046A I/O voltage
1 3V3 3.3 V
2 CONN_SPI_MOSI From LS1046A
3 CONN_SPI_MISO To LS1046A
4 CONN_SPI_CLK From LS1046A
5 GND
6 CONN_SPI_CS1_B From LS1046A
7 CONN_SPI_CS2_B From LS1046A
8 CONN_SPI_CS3_B From LS1046A
2.10 MikroBUS socket
The FRWY-LS1046A provides one mikroBUS socket supporting two connectors, J56 and J57. A mikroBUS socket is a pair of 1×8
female headers with a proprietary pin configuration and silkscreen markings, as shown in the figure below. The mikroBUS socket
allows maximum hardware expandability with smallest number of pins.
MikroBUS socket
Layerscape FRWY-LS1046A Board Reference Manual, Rev. 0, 26 April 2019
NXP Semiconductors
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