参数资料
型号: ZL50408GDG2
厂商: CONEXANT SYSTEMS
元件分类: 网络接口
英文描述: DATACOM, LAN SWITCHING CIRCUIT, PBGA208
封装: 17 X 17 MM, 1.40 MM HEIGHT, LEAD FREE, MO-192, LBGA-208
文件页数: 63/144页
文件大小: 1779K
代理商: ZL50408GDG2
ZL50408
Data Sheet
25
Zarlink Semiconductor Inc.
Automatic learning enabled
Per-port security disabled
Support frame size 64 <= n <= 1522
Pad transmit frames < 64B
Standard preamble
Strict Priority scheduling
FE Ports
- RMII mode
- Auto-negotiate 10/100 M, Full Duplex, Flow Control
- Rate control disabled
- per-source port buffer pool of 96 buffers, with flow control threshold of 48 buffers
Uplink Port
- GMII mode
- Auto-negotiate 10/100/1000 M, Full Duplex, Flow Control
- per-source port buffer pool of 384 buffers, with flow control threshold of 192 buffers
In lightly managed/managed mode, the default configuration can be used as well, however, the device needs to be
told when to start switching. This is done via the “Init Complete” bit, set in GCR[4]. The default settings can be
overridden using the CPU interface, but should be done before setting of GCR[4]. One thing to note is after reset,
the device will start to initialize the control tables. Therefore, a short delay (100 us~1 ms) is necessary before
changing the register settings and/or control tables, and before setting GCR[4].
System Defaults
CPU MAC address is 00-00-00-00-00-00
Forward MAC addresses 01-80-C2-00-00-00~F to CPU port
- Except 01-80-C2-00-00-01~F, which are dropped
All interrupts enabled
MAC address learn report to CPU disabled
Statistics counters disabled
DiffServ EF code support disabled
No VLAN ID hashing
Per-port Defaults
FE Ports
- Link heart beat disabled
CPU Port
- 100 M, Full Duplex, Flow Control
- 8-byte header padding
- per-source port buffer pool of 96 buffers, with flow control threshold of 48 buffers
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