VSC7440 datasheet(36/444 Pages) MICROSEMI

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Functional Descriptions

VMDS-10492 VSC7440 Datasheet Revision 4.2

MISC

PIPELINE_ACT

25:23

3 bits

Pipeline action specifies if a frame is

injected, extracted, or discarded.

0: None

1: INJ

2: INJ_MASQ

3: Reserved

4: XTR

5: XTR_UPMEP

6: LBK_ASM

7: LBK_QS

PIPELINE_PT

22:18

5 bits

Pipeline point specifies the location where

a frame is injected, extracted, or

discarded.

0: None

1: ANA_VRAP

2: ANA_PORT_VOE

3: ANA_CL

4: ANA_CLM

5: ANA_IPT_PROT

6: ANA_OU_MIP

7: ANA_OU_SW

8: ANA_OU_PROT

9: ANA_OU_VOE

10: ANA_MID_PROT

11: ANA_IN_VOE

12: ANA_IN_PROT

13: ANA_IN_SW

14: ANA_IN_MIP

15: ANA_VLAN

16: ANA_DONE

17: REW_IN_MIP

18: REW_IN_SW

19: RE_IN_VOE

20: REW_OU_VOE

21: REW_OU_SW

22: REW_OU_MIP

23: REW_SAT

24: REW_PORT_VOE

25: REW_VRAP

CPU_MASK

17:10

8 bits

CPU extraction queue mask.

TAGGING

POP_CNT

9:8

2 bits

Controlled by CPU or

ANA_CL:PORT:VLAN_CTRL.VLAN_POP

_CNT or CLM VLAN_POP_CNT_ENA

and causes the rewriter to pop the

signaled number of consecutive VLAN

tags. If ENCAP.W16_POP_CNT >0 and

TYPE_AFTER_POP = ETH POP_CNT

applies to inner Ethernet layer.

Table 2 •

Internal Frame Header Fields (continued)

Field Category

Field Name

Bit

Width

Description

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