EDM1-IMX6 HARDWARE MANUAL
– VER 1.00 – NOV 14 2019
Page
52
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80
3.13. Serial Peripheral Interface (SPI)
The EDM1-IMX6 features two Enhanced Configurable SPI ports, which are derived from the i.MX6
processor, integrated ECSPI IPs.
The following main features are supported:
•
Full-duplex synchronous serial interface
•
Master/Slave configurable
•
Transfer continuation function allows unlimited length data transfers
•
32-bit wide by 64-entry FIFO for both transmit and receive data
•
32-bit wide by 16-entry FIFO for HT message data
•
Polarity and phase of the Chip Select (SS) and SPI Clock (SCLK) are configurable Direct Memory
Access (DMA) support
For additional details, please refer to the “Enhanced Configurable SPI (ECSPI)” chapter of the “i.MX6
Reference Manual”.
Table 28 - Primary SPI Channel Signal Description
EDM
PIN
i.MX6
BALL
PAD NAME
Signal
V
I/O
Description
219
J23
EIM_CS1
ECSPI2_MOSI
3V3
O
Serial Peripheral Interface
primary channel master output
slave input signal
221
J24
EIM_OE
ECSPI2_MISO
3V3
I
Serial Peripheral Interface
primary channel master input
slave output signal
223
H24
EIM_CS0
ECSPI2_SCLK
3V3
O
Serial Peripheral Interface
primary channel clock signal
225
K20
EIM_RW
ECSPI2_SS0
3V3
O
Serial Peripheral Interface
primary channel Chip Select 0
signal
227
K22
EIM_LBA
ECSPI2_SS1
3V3
O
Serial Peripheral Interface
primary channel Chip Select 1
signal. Do not use if only 1
SPI device is used