TC9205M-DS-R03 datasheet(10/51 Pages) ETC1

10 / 51 page

TC9205M

Preliminary Data Sheet

Pin Listing (continued)

No.

Pin label

Type

Description

TxData3_7

GMII transmit data - bit 7

Y17

EnIPPr

I/Opd

Enables IP prioritization. CoS resolution will consider TOS

Precedence bits from IP Header.

‘1’ – IP priority will be taken into consideration

‘0’ – IP priority will be neglected

EnIPPr is latched on reset

TxData3_6

GMII transmit data - bit 6

W17

IPTosMap1

I/Opd

IP type of service mapping - the most significant bit

IPTosMap(1) is latched on reset

TxData3_5

GMII transmit data - bit 5

V17

IPTosMap0

I/Opu

IP type of service mapping - the least significant bit. This

configuration chooses between 4 hard-wired mapping schemes for

the associations of IP priority within the received packet and one of

the 4 priority levels set by PriClass.

In case the receiving port already has a priority level assigned by

PriClass configuration, or the VLAN prioritization is also active, a

resolution function is used for the final priority class.

IPTosMap(0) is latched on reset.

TxData3_4

GMII/MII transmit data - bit 4

Y16

EnVLANPr

I/Opu

Enables VLAN prioritization. CoS resolution will consider user priority

bits (TCI field) from 802.1Q VLAN Tag Header.

‘1’ – VLAN priority will be taken into consideration

‘0’ – VLAN priority will be neglected

EnVLANPr is latched on reset

TxData3_3

GMII/MII transmit data - bit 3

W16

VLANPrMap1

I/Opd

VLAN priority mapping

VLANPrMap(1)is latched on reset.

G17 Vdd 3.3

Digital +3.3V power supply for I/O

TxData3_2

GMII/MII transmit data - bit 2

V16

VLANPrMap0

I/Opu

VLAN priority mapping

This configuration chooses between 4 hard-wired mapping schemes

for the associations of VLAN priority within the received packet and

one of the 4 priority levels set by PriClass.

In case the receiving port already has a priority level assigned by

PriClass configuration, or the IP prioritization is also active, a

resolution function is used for the final priority class.

VLANPrMap(0)is latched on reset.

TxData3_1

GMII/MII transmit data - bit 1

V15

PriClass3_1

I/Opd

Priority class - most significant bit.

PriClass[3] is latched on reset

TxData3_0

GMII/MII transmit data - least significant bit

W15

PriClass3_0

I/Opu

Priority class - least significant bit. Sets priority level per port basis.

PriClass[3] - '00' - port 3 low priority

PriClass[3] - '01' - port 3 has normal priority

PriClass[3] - '10' - port 3 has high priority

PriClass[3] - '11' - port 3 has very high priority

PriClass[3] is latched on reset

Confidential.

10/51

July 30, 2003

TC9205M-DS-R03

TC9205M-DS-R03 数据表(PDF) 10 Page - List of Unclassifed Manufacturers

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