Figure 4-11. Icssm Overview - Texas Instruments AM263 Series User Manual

Hardware Description
4.6.2 PRU-ICSS
The PRU internal pinmux mapping provided in the TRM is part of the original hardware definition of
the PRU. However, due to the flexibility provided by the IP and associated firmware configuraitons,
this is not necessarily a hard requirement. The first PRU implementation for AM65x had the MII
TX pins swapped during initial SoC integration and this convention was maintained for subsequent
PRU revisions to enable firmware reuse. To make use of the SDK firmware, use the SYSCONFIG
generated PRU pin mapping.
The AM263x Control Card makes use of two on-die programmable real-time unit and industrial communication
subsystem's (PRU-ICSS) of the AM263x SoC to interface with two Ethernet PHY transceivers. There is a Gigabit
Ethernet PHY transceiver (DP83869HMRGZT) connected to PRU0 of the SoC and an industrial Ethernet PHY
transceiver (DP83826ERHBT) connected to PRU1. The ethernet data signals of each PHY are terminated to an
RJ45 connector. The RJ45 connectors are used on the board for Ethernet 10/100/1000 (DP83869HMRGZT) and
10/100 (DP83826ERHBT) Mbps connectivity with integrated magnetic and LEDs for link and activity indication.
24 AM263x Control Card Hardware User's Guide
Note

Figure 4-11. ICSSM Overview

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SPRUJ09C – MARCH 2022 – REVISED FEBRUARY 2023
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