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Zynq Ult MPSoC SOM Hardware User Guide
iWave Systems Technologies Pvt. Ltd.
For more details on SD/SDIO Interface pinouts on Board to Board Connector2, refer the below table.
B2B-2
Pin No
B2B Connector2
Pin Name
SoC Ball Name/
Pin Number
Signal Type/
Termination
Description
40
SD1_WP(PS_MIO44_501)
PS_MIO44_501/
E24
O, 1.8V LVCMOS/
4.7K PU
SD1 Write Protect.
42
SD1_CD(PS_MIO45_501)
PS_MIO45_501/
F23
I, 1.8V LVCMOS/
4.7K PU
SD1 Card Detect.
44
SD1_PWR(PS_MIO43_501)
PS_MIO43_501/
F22
O, 1.8V LVCMOS
SD1 Power Enable/Voltage select
through PS GPIO.
62
SD1_DATA3(PS_MIO49_501) PS_MIO49_501/
G21
IO, 1.8V LVCMOS/
10K PU
SD1 DATA3.
64
SD1_DATA2(PS_MIO48_501) PS_MIO48_501/
J21
IO, 1.8V LVCMOS/
10K PU
SD1 DATA2.
66
SD1_DATA1(PS_MIO47_501) PS_MIO47_501/
K21
IO, 1.8V LVCMOS/
10K PU
SD1 DATA1.
69
SD1_DATA0(PS_MIO46_501) PS_MIO46_501/
K20
IO, 1.8V LVCMOS/
10K PU
SD1 DATA0.
71
SD1_CMD(PS_MIO50_501)
PS_MIO50_501/
J20
IO, 1.8V LVCMOS/
10K PU
SD1 Command.
72
SD1_CLK(PS_MIO51_501)
PS_MIO51_501/
H21
O, 1.8V LVCMOS/
10K PU
SD1 Clock.
2.8.1.5
SPI Interface
The Zynq Ult MPSoC SOM supports one SPI interface with one chip select on Board to Board Connector2 and
second chip select on Board to Board conenctor1. The SPI0 controller
of MPSoC’s PS
is used for SPI interface through
MIO pins. It can function in master mode, slave mode or multi-master mode and supports full-duplex operation.
For more details on SPI Interface pinouts on Board to Board Connector2, refer the below table.
B2B-2
Pin No
B2B Connector2
Pin Name
SoC Ball Name/
Pin Number
Signal Type/
Termination
Description
61
SPI0_SCLK(PS_MIO0_500)
PS_MIO0_500/
H17
O, 1.8V LVCMOS
SPI clock.
63
SPI0_SS0(PS_MIO3_500)
PS_MIO3_500/
D19
O, 1.8V LVCMOS
SPI chip select0.
65
SPI0_MOSI(PS_MIO5_500)
PS_MIO5_500/
C19
IO, 1.8V LVCMOS
SPI Master output Slave input.
67
SPI0_MISO(PS_MIO4_500)
PS_MIO4_500/
J17
IO, 1.8V LVCMOS
SPI Master input Slave output.
B2B-1
Pin No
B2B Connector1
Pin Name
SoC Ball Name/
Pin Number
Signal Type/
Termination
Description
178
SPI0_SS2(PS_MIO1_500)
PS_MIO1_500/
A20
I/O, 1.8V LVCMOS SPI chip select2. Same pin can be
configured as GPIO.