參數(shù)資料
型號: MVTX2803AG
廠商: ZARLINK SEMICONDUCTOR INC
元件分類: 網(wǎng)絡(luò)接口
英文描述: Unmanaged 8-Port 1000 Mbps Ethernet Switch
中文描述: DATACOM, LAN SWITCHING CIRCUIT, PBGA596
封裝: 40 X 40 MM, 2.33 MM HEIGHT, MS-034, HSBGA-596
文件頁數(shù): 47/127頁
文件大?。?/td> 1706K
代理商: MVTX2803AG
MVTX2803
Data Sheet
47
Zarlink Semiconductor Inc.
10.6.12 BMRC - Broadcast/Multicast Rate Control
I
2
C Address: h049, Serial Interface Address:h50B
Accessed by serial interface and I
2
C (R/W)
This broadcast and multicast rate defines for each port the number of incoming packet 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.
10.6.13 UCC – Unicast Congestion Control
I
2
C Address: h04A, Serial Interface Address: h50C
Accessed by serial interface and I
2
C (R/W)
10.6.14 MCC – Multicast Congestion Control
I
2
C Address: h0B7, Serial Interface Address: h50D
Accessed by serial interface and I
2
C (R/W)
7
4
3
0
Broadcast Rate
Multicast Rate
Bit [3:0] :
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)
.
Bit [7:4] :
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)
7
0
Unicast congest threshold
Bit [7:0] :
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 16 frame. (Default: h07)
7
5
4
3
0
FC reaction prd
Multicast congest threshold
Bit [3:0]:
In multiples of two. Used for triggering MC flow control when destination port’s best effort queue
reaches MCC threshold. (Default 5’h08)
Bit [4]:
Must be 0
Bit [7:5]:
Flow control reaction period. ([7:5] *4)+3 usec (Default 3’h2).
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