TC9204-DS-R05 datasheet(35/49 Pages) ETC1

35 / 49 page

TC9204M

Preliminary Data Sheet

10.3.8

IP Priority Mapping Register

Confidential.

35/49

July 29, 2003

TC9204M-DS-R05

- Address: 3Fh, 40h

7 6 5 4 3 2 1 0

IPTosMapping

15 14 13 12 11 10 9 8

Tos0Class

Tos1Class

Tos2Class

Tos3Class

Tos4Class

Tos5Class

Tos6Class

Tos7Class

Bit(s)

Field

Description

1 - 0

Tos0Class

priority mapping for IP precedence 0

3 - 2

Tos1Class

priority mapping for IP precedence 1

5 - 4

Tos2Class

priority mapping for IP precedence 2

7 - 6

Tos3Class

priority mapping for IP precedence 3

9 - 8

Tos4Class

priority mapping for IP precedence 4

11 - 10

Tos5Class

priority mapping for IP precedence 5

13 - 12

Tos6Class

priority mapping for IP precedence 6

15 - 14

Tos7Class

priority mapping for IP precedence 7

Tos[x]Class

This field maps the IP priority level x found in the incoming frame to one of the four

priority classes. The table bellow shows the mapping.

Tos[x]Class

CoS

Class 0 priority

Class 1 priority

Class 2 priority

Class 3 priority

x ranges in the field 0 to 7.

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