KSZ9567RTXI-TR datasheet(91/232 Pages) MICROCHIP

91 / 232 page

 2017-2019 Microchip Technology Inc.

DS00002329D-page 91

KSZ9567R

5.1.4.24

Switch MAC Control 1 Register

Address:

0x0331

Size:

8 bits

Bits

Description

Type

Default

RESERVED

R/W

Multicast Storm Protection Disable

1 = Multicast packets are not included in Broadcast Storm Protection

0 = Multicast packets are included in Broadcast Storm Protection

R/W

Back Pressure Mode

1 = Use carrier sense based back pressure mode

0 = Use collision based back pressure mode. (This is the recommended

mode.)

R/W

Flow Control and Back Pressure Fair Mode

1 = Enable fair mode. If a flow controlled ingress port and a non-flow

controlled ingress port forward traffic to the same egress port, packets from

the non-flow controlled port may be dropped.

0 = Disable fair mode. In this scenario the flow controlled port will be flow

controlled, and the non-flow controlled port will be neither flow controlled nor

packets dropped.

R/W

No Excessive Collision Drop

If this bit is set, Alternate Back-odd Mode (bit 7 in the Switch MAC Control 0

1 = The switch will not drop packets when 16 or more collisions occur.

0 = The switch will drop packets when 16 or more collisions occur

R/W

Jumbo Packet Support

The programmable packet payload size limit is specified in register 0x0308 –

0x0309, up to a maximum of 9000 bytes. This bit overrides bit 1 of this

1 = Enable support for jumbo packets

0 = Disable

R/W

Legal Maximum Packet Size Check Disable

1 = Accept packets up to 2000 bytes in size.

0 = Accept only standard size packets, up to 1522 bytes for tagged packets,

or 1518 bytes for untagged packets. Larger packets will be dropped.

R/W

Pass Short Packet

1 = Accept packets between 32 and 64 bytes in size.

0 = Accept only standard size packets, at least 64 bytes. Smaller packets are

dropped.

R/W

KSZ9567RTXI-TR 数据表(PDF) 91 Page - Microchip Technology

KSZ9567RTXI-TR 数据表(HTML) 91 Page - Microchip Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

数据表下载