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Zynq-7000 AP SoC Technical Reference Manual www.xilinx.com 554
UG585 (v1.11) September 27, 2016
Chapter 17: SPI Controller
Master Mode via EMIO
IMPORTANT: When using EMIO pins, tie SSIN High in the PL bitstream. Ensure that the PS–PL voltage
level shifters are enabled, and that the PL is powered and configured. Otherwise the SPI controller will
not function properly. For more information about enabling the voltage shift registers, refer to PS–PL
Voltage Level Shifter Enables, page 46.
X-Ref Target - Figure 17-8
Figure 17-8: SPI Master Mode Wiring Diagram via EMIO
UG585_c17_08_022613
SPI Master
Controller
EMIO SPI x SCLKI
SCLK
EMIO
Device
Boundary
EMIO SPI x SCLKTN
EMIO SPI x SCLKO
EMIO SPI x SI
MOSI
EMIO SPI x MOTN
EMIO SPI x MO
EMIO SPI x SO
MISO
EMIO SPI x SOTN
EMIO SPI x MI
nc
EMIO SPI x SSON 1
SS 0
EMIO SPI x SSNTN
EMIO SPI x SSON 0
nc
EMIO SPI x SSON 2
SS 2
EMIO SPI x SSIN
SS 1
PL
I/O Select
PS IOP