参数资料
型号: ZL50418/GKC
厂商: ZARLINK SEMICONDUCTOR INC
元件分类: 网络接口
英文描述: DATACOM, LAN SWITCHING CIRCUIT, PBGA553
封装: 37.50 X 37.50 MM, 2.33 MM HEIGHT, MS-034, HSBGA-553
文件页数: 116/155页
文件大小: 1928K
代理商: ZL50418/GKC
ZL50418
Data Sheet
63
Zarlink Semiconductor Inc.
In addition, there is a shared pool, which can store any type of frame. The frame engine allocates the frames first in
the six priority sections. When the priority section is full or the packet has priority 1 or 0, the frame is allocated in the
shared poll. Once the shared poll is full the frames are allocated in the section reserved for the source port.
The following registers define the size of each section of the Frame data Buffer:
PR100- Port Reservation for 10/100 M and CPU Ports
PRG- Port Reservation for Gigabit Ports
SFCB- Share FCB Size
C2RS- Class 2 Reserve Size
C3RS- Class 3 Reserve Size
C4RS- Class 4 Reserve Size
C5RS- Class 5 Reserve Size
C6RS- Class 6 Reserve Size
C7RS- Class 7 Reserve Size
Figure 14 - Buffer Partition Scheme Used to Implement Buffer Management
shared pool
reservation
per-source
reservations
temporary
reservation
per-class
reservations
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