zl50415 Zarlink Semiconductor, zl50415 Datasheet - Page 88

• Manufacturer Part Number: zl50415
• Description: Managed 16-port 10/100 M + 2-port 1 G Ethernet Switch
• Manufacturer: Zarlink Semiconductor

14.9.12
I
Accessed by CPU, serial interface and I
This broadcast and multicast rate defines for each port, the number of packets allowed to be forwarded within a
specified time. Once the packet rate is reached, packets will be dropped. To turn off the rate limit, program the field
to 0. Time base is based on register FCR [6:4]
14.9.13
I
Accessed by CPU, serial interface and I
14.9.14
I
Accessed by CPU, serial interface and I
2
2
2
C Address h0B5, CPU Address:h50B)
C Address h0B6, CPU Address: 50C
C Address h0B7, CPU Address: 50D
Bit [5]:
Bit [6]:
Bit [7]:
Bit [3:0]:
Bit [7:4]:
Bit [7:0]:
BMRC - Broadcast/Multicast Rate Control
UCC – Unicast Congestion Control
MCC – Multicast Congestion Control
7
Broadcast Rate
7
7
FC reaction period
Frame drop priority when TOS field is 5 (Default 0)
Frame drop priority when TOS field is 6 (Default 0)
Frame drop priority when TOS field is 7 (Default 0)
Multicast Rate Control. Number of multicast packets allowed within the time
defined in bits 6 to 4 of the Flooding Control Register (FCR). (Default 0) .
Broadcast Rate Control. Number of broadcast packets allowed within the
time defined in bits 6 to 4 of the Flooding Control Register (FCR). (Default
0)
Number of frame count. Used for best effort dropping at B% when destination
port’s best effort queue reaches UCC threshold and shared pool is all in use.
Granularity 1 frame. (Default: h10 for 2 MB/bank or h08 for 1 MB/bank)
Unicast congest threshold
5
4
4
2
2
2
C (R/W)
C (R/W)
C (R/W)
Multicast congest threshold
3
Multicast Rate
Zarlink Semiconductor Inc.
ZL50418
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Data Sheet