KSZ8895MQ Datasheet, PDF (86/116 Pages) Micrel Semiconductor – Integrated 5-Port 10/100 Managed Ethernet Switch with MII/RMII interface

Micrel, Inc.
KSZ8895MQ/RQ/FMQ
Advanced Control Registers (Continued)
Address Name
Description
Mode
Default
Register 190 (0xBE) : Port 1 Queue 3 Egress Limit Control 4
Register 206 (0xCE) : Port 2 Queue 3 Egress Limit Control 4
Register 222 (0xDE) : Port 3 Queue 3 Egress Limit Control 4
Register 238 (0xEE): Port 4 Queue 3 Egress Limit Control 4
Register 254 (0xFE): Port 5 Queue 3 Egress Limit Control 4
7
Reserved
RO
0
Egress data rate limit for priority 3 frames
6–0
Port Queue 3 Egress Limit
Egress traffic from this priority queue is shaped
according to the Data Rate Selected Table. See the ^R/W
table follow the end of Egress limit control registers.
In four queues mode, it is highest priority.
0000000
Note:
1. In the port priority 0-3 ingress rate limit mode, will need to set all related ingress/egress ports to two queues or four queues
mode.
2. In the port queue 0-3 egress rate limit mode, the highest priority get exact rate limit based on the rate select table, other
priorities packets rate are based upon the ratio of the port register control 10/11/12/13 when use more than one egress queue
per port.
September 2011
86
M9999-091911-1.4