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PCM-072/phyCORE-AM64xx System on Module
L-860e.A0
© PHYTEC America L.L.C. 2022
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Figure 27. USB 3.1 Connector Reference Schematic
The above circuits consist of the following parts:
•
A USB-HUB to convert the USB2.0 and SERDES signals into four USB outputs
•
Two USB power switches to shut down the USB power rails if the current exceeds 1A
•
Two TVS diode arrays and two common mode filters (CMF) for ESD and EMI considerations
•
A two port USB 3.1 connector
8
Control Interfaces
The following sub-sections detail each of the control interfaces supported on the phyCORE-AM64xx.
8.1 Enhanced Capture
The phyCORE-AM64xx SOM brings out 3x Enhanced Capture (ECAP) modules.
8.1.1 ECAP Pinout
Table 40 ECAP Connections at the phyCORE-Connector
Processor Signal
X1 Pin #(s)
SOM Signal(s)
Type
Level
Description
ECAP0_IN_APWM_OUT
D16
X_ECAP0_IN_APWM_OUT
I/O
3.3V
1
Enhanced Capture (ECAP) Input or
Auxiliary PWM (APWM) Output
ECAP1_IN_APWM_OUT
D18
X_MCAN1_TX
I/O
3.3V
1
Enhanced Capture (ECAP) Input or
Auxiliary PWM (APWM) Output
ECAP2_IN_APWM_OUT
D17
X_MCAN1_RX
I/O
3.3V
1
Enhanced Capture (ECAP) Input or
Auxiliary PWM (APWM) Output
PRG0_ECAP0_IN_APWM_OUT
A54
X_CPSW_MDC
(1.5K pullup)
I/O
3.3V
1
PRU-ICSSG Enhanced Capture (ECAP)
Input or Auxiliary PWM (APWM)
Output