KSZ9567R datasheet(48/232 Pages) MICROCHIP

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KSZ9567R

DS00002329D-page 48

 2017-2019 Microchip Technology Inc.

4.4.18.3

Action Rule Description

TABLE 4-20:

ACL ACTION RULE PARAMETERS FOR NON-COUNT MODES (MD ≠ 01 OR ENB ≠

00)

Parameter

Description

PM[1:0]

Priority Mode

00 = ACL does not specify the packet priority. Priority is determined by standard QoS

functions.

01 = Change packet priority to P[2:0] if it is greater than QoS result.

10 = Change packet priority to P[2:0] if it is smaller than the QoS result.

11 = Always change packet priority to P[2:0].

P[2:0]

Priority value

RPE

Remark Priority Enable

0 = Disable priority remarking

1 = Enable priority remarking. VLAN tag priority (PCP) bits are replaced by RP[2:0].

RP[2:0]

Remarked Priority value

MM[1:0]

Map Mode

00 = No forwarding remapping

01 = The forwarding map in FORWARD is OR'ed with the forwarding map from the

Address Lookup Table.

10 = The forwarding map in FORWARD is AND'ed with the forwarding map from the

Address Lookup Table.

11 = The forwarding map in FORWARD replaces the forwarding map from the Address

Lookup Table.

FORWARD[N-1:0]

Forwarding Ports

Bit 0 corresponds to port 1

Bit 1 corresponds to port 2, etc.

0 = Do not forward to this port

1 = Forward to this port

TABLE 4-21:

ACL ACTION RULE PARAMETERS FOR COUNT MODE (MD = 01 OR ENB = 00)

Parameter

Description

COUNT[10:0]

Count value

Time unit for counter.

0 = Microseconds

1 = Milliseconds

Counter Algorithm.

0 = An 11-bit counter will be loaded with the count value from the list and start counting

down every unit time. An interrupt will be generated when the timer expires, i.e. the

next qualified packet has not been received within the period specified by the value.

1 = The counter is incremented with every matched packet received. An interrupt is

generated when the terminal count is reached. The count resets thereafter. Time units

are not used in this mode.

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