VSC7511 datasheet(31/324 Pages) MICROSEMI

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Functional Descriptions

VMDS-10488 VSC7511 Datasheet Revision 4.2

Functional Descriptions

This section provides information about the functional aspects of the VSC7511 Industrial IoT Ethernet

switch device, available configurations, operational features, and testing functionality.

3.1

Port Numbering and Mappings

The switch core contains an internal port numbering domain where ports are numbered from 0 through

11. A port connects to a port module, which connects to an interface macro, which connects to I/O pins

on the device. The interface macros are SERDES6G or copper transceivers.

Some ports are internal to the device and do not connect to port modules or interface macros. For

example, internal ports are used for frame injection and extraction to the CPU queues.

The following table shows the default port numbering and how the ports map to port modules and

interface macros.

Ports 11 is an internal port used for injection and extraction of frames towards a CPU. It does not have an

associated port module and interface macro.

The following table shows the fixed mapping from interface macros to the device I/O pins.

Table 3 •

Default Port Numbering and Port Mappings

Port Number

Port Module

Maximum

Port Speed

Default Interface Macro

DEV[0]

1 Gbps

CUPHY_0

DEV[1]

1 Gbps

CUPHY_1

DEV[2]

1 Gbps

CUPHY_2

DEV[3]

1 Gbps

CUPHY_3

DEV[4]

1 Gbps

SERDES1G_4

DEV[5]

1 Gbps

SERDES1G_5

DEV[7]

1 Gbps

SERDES6G_0

DEV[8]

1 Gbps

SERDES6G_1

10 (NPI)

DEV[10]

2.5 Gbps

SERDES6G_2

11 (CPU)

No port module

No macro

Table 4 •

Interface Macro to I/O Pin Mapping

SERDES Macros

I/O Pin Names

CUPHY_0 to CUPHY_3

P0_D[3:0]N, P0_D[3:0]P - P3_D[3:0]N, P3_D[3:0]P

SERDES1G_4 to SERDES1G_5

S4_RXN, S4_RXP, S4_TXN, S4_TXP - S5_RXN, S5_RXP, S5_TXN, S5_TXP

SERDES6G_0 to SERDES6G_2

S6_RXN, S6_RXP, S6_TXN, S6_TXP - S8_RXN, S8_RXP, S8_TXN, S8_TXP

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