STM32MP157C datasheet(57/258 Pages) STMICROELECTRONICS

57 / 258 page

DS12505 Rev 2

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STM32MP157C

Functional overview

The main features are:

•

Combined Rx and Tx FIFO size of 4 Kbyte with dynamic FIFO sizing

•

Supports the session request protocol (SRP) and host negotiation protocol (HNP)

•

8 bidirectional endpoints

•

16 host channels with periodic OUT support

•

Software configurable to OTG1.3 and OTG2.0 modes of operation

•

USB 2.0 LPM (link power management) support

•

Battery charging specification revision 1.2 support

•

Internal FS or HS OTG PHY support

•

Internal USB DMA

•

HNP/SNP/IP inside (no need for any external resistor)

•

For OTG/Host modes, a power switch is needed in case bus-powered devices are

connected

3.49

Gigabit Ethernet MAC interface (ETH1)

The devices provide an IEEE-802.3-2002-compliant gigabit media access controller

(GMAC) for Ethernet LAN communications through an industry-standard medium-

independent interface (MII), a reduced medium-independent interface (RMII), a gigabit

medium-independent interface (GMII) or a reduced gigabit medium-independent interface

(RGMII).

The STM32MP157C requires an external physical interface device (PHY) to connect to the

physical LAN bus (twisted-pair, fiber, etc.). The PHY is connected to the device port using

17 signals for MII, 7 signals for RMII, 26 signals for GMII or 13 signals for RGMII, and can

be clocked using the 25 MHz (MII, RMII, GMII, RGMII) or 125 MHz (GMII, RGMII) from the

STM32MP157C or from the PHY.

The devices include the following features:

•

Operation modes and PHY interfaces

–

10, 100, and 1000 Mbps data transfer rates

–

Support of both full-duplex and half-duplex operations

–

MII, RMII, GMII and RGMII PHY interfaces

•

Multiple queues support and audio video bridging (AVB) management

–

Separate channels or queues for AV data transfer in 100 and 1000 Mbps modes

–

Two queues on the Rx paths and two queues on the Tx path for AV traffic

–

One DMA for Rx path and two DMA for Tx path (one per transmit channels)

–

Several arbitration algorithms between queues: weighted round robin (WRR),

strict priority (SP), weighted strict priority (WSP), IEEE 802.1-Qav specified credit-

based shaper (CBS) algorithm for Transmit channels

•

Processing control

–

Multi-layer Packet filtering: MAC filtering on source (SA) and destination (DA)

address with perfect and hash filter, VLAN tag-based filtering with perfect and

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