Datasheet

ManualsBrandsMicrochip ManualsIntegrated Circuits (ICs)5-Port Managed Ethernet Switch Ethernet/SPI/MAC/PHY/MII/RMII/RGMII/GMII LQFP-80

 2016-2017 Microchip Technology Inc. DS00002112B-page 81

KSZ8795CLX

Examples:

1. Static Address Table Read (read the 2nd entry)

Write to Register 110 with 0x10 (read static table selected)

Write to Register 111 with 0x1 (trigger the read operation)

Then

Read Register 113 (63:56)

Read Register 114 (55:48)

Read Register 115 (47:40)

Read Register 116 (39:32)

54 Override 1 = Override spanning tree “transmit enable = 0” or

“receive enable = 0* setting. This bit is used for

spanning tree implementation.

0 = No override.

RO 0

53 Valid 1 = This entry is valid, the look-up result will be

used.

0 = This entry is not valid.

RO 0

52 - 48 Forwarding

Ports

These 5 bits control the forward ports.

For example:

00001 = Forward to Port 1

00010 = Forward to Port 2

00100 = Forward to Port 3

01000 = Forward to Port 4

10000 = Forward to Port 5

00110 = Forward to Port 2 and Port 3

11111 = Broadcasting (excluding the ingress port)

RO 00000

47 - 0 MAC

Address (DA)

48-bit MAC address. RO 0x0

Format of Static MAC Table for Writes (32 entries)

62 - 56 FID Filter VLAN ID, representing one of the 128 active

VLANs.

W 0000000

55 Use FID 1 = Use (FID+MAC) to look-up in static table.

0 = Use MAC only to look-up in static table.