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MVTX2603
Data Sheet
61
Zarlink Semiconductor Inc.
13.6.36 Class 6 Shaper Control Port G1
Accessed by serial interface (R/W)
QOSC56[5:0] – TOKEN_RATE_G1 (Address 54f). Programs the average rate for Gigabit port 1. When equal to 0,
shaper is disable. Granularity is 1.
QOSC57[7:0] – TOKEN_LIMIT_G1 (Address 550). Programs the maximum counter for Gigabit port1. Granularity is
16 bytes.
Shaper is implemented to control the peak and average rate for outgoing traffic with priority 6 (queue 6). Shaper is
limited to gigabit ports and queue P6 when it is in strict priority. QOSC41 programs the peak rate for Gigabit port 1.
See Programming QoS Registers Application Note for more information.
13.6.37 Class 6 Shaper Control Port G2
Accessed by serial interface (R/W)
QOSC58[5:0] – TOKEN_RATE_G2 (CPU Address 551). Programs the average rate for Gigabit port 2. When equal to
0, shaper is disable. Granularity is 1.
QOSC59[7:0] – TOKEN_LIMIT_G2 (CPU Address 552). Programs the maximum counter for Gigabit port2.
Granularity is 16 bytes.
Shaper is implemented to control the peak and average rate for outgoing traffic with priority 6 (queue 6). Shaper is
limited to gigabit ports and queue P6 when it is in strict priority. QOSC49 programs the peak rate for Gigabit port 2.
See Programming QoS Registers Application Note for more information.
13.6.38 RDRC0 – WRED Rate Control 0
I
2
C Address: h0FB, CPU Address: h553
Accessed by serial Interface and I
c
C (R/W)
13.6.39 RDRC1 – WRED Rate Control 1
I
2
C Address: h0FC, CPU Address: h554
Accessed by serial Interface and I
2
C (R/W)
7
4
3
0
X Rate
Y Rate
Bits [7:4]:
Corresponds to the frame drop percentage X% for WRED. Granularity
6.25%.
Bits [3:0]:
Corresponds to the frame drop percentage Y% for WRED. Granularity
6.25%.
See Programming QoS Registers Application Note for more information.
7
4
3
0
Z Rate
B Rate
Bits [7:4]:
Corresponds to the frame drop percentage Z% for WRED. Granularity 6.25%.
Bits [3:0]:
Corresponds to the best effort frame drop percentage B%, when shared pool is
all in use and destination port best effort queue reaches UCC. Granularity
6.25%.
See Programming QoS Register Application Note for more information.