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参数资料
型号： ZL50408GDC
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, MO-192, LBGA-208
文件页数： 62/144页
文件大小： 1779K
代理商： ZL50408GDC
ZL50408
Data Sheet
24
Zarlink Semiconductor Inc.
- SSI Device ID bootstrap, TSTOUT[6:4], should be pulled-down to indicate device ID 0x0 for the SSI
interface. Can be changed to whatever device ID required if more than one device on the SSI bus.
- EEPROM bootstrap, TSTOUT[7], should be pulled-up to disable until the system is debugged. You
can pull-down this bootstrap if using the optional EEPROM in unmanaged mode (NOTE: this bootstrap
is not valid in any other CPU mode)
Module Detect bootstrap, TSTOUT[9], should be pulled-down
- In lightly managed mode, you can enable the optional Module Detect feature
- If enabled, need to use Mn_TXEN to indicate module type
Power Saving bootstrap, TSTOUT[11], should be normally pulled-up
Timeout Reset bootstrap, TSTOUT[12], should be pull-down
- Once system is debugged, you can enable the optional feature with pull-up (Refer to section 2.7 for more
details on this feature)
Managed
Reserved/Manufacturing bootstraps
- TSTOUT[15:13,6:4,8,7,0] must be pulled-up
- TSTOUT[10] must be pulled-down
CPU Interface
- TSTOUT[3:1], should be pulled-down to indicate 16-bit CPU mode
- For 8-bit CPU mode, pull-up TSTOUT[1]
Module Detect bootstrap, TSTOUT[9], should be pulled-down, unless using the Module Detect feature
- If enabled, need to use Mn_TXEN to indicate module type
Power Saving bootstrap, TSTOUT[11], should be normally pulled-up
Timeout Reset bootstrap, TSTOUT[12], should be pull-down
- Once system is debugged, you can enable the optional feature with pull-up (Refer to section 2.7 for
more details on this feature)
1.6
Default Switch Configuration and Initialization Sequence
The ZL50408 will come out of reset in a default configuration, which will allow for basic L2 switching and automatic
MAC address learning.
In unmanaged mode, the default configuration will take effect immediately after reset. The default settings can be
changed using the optional EEPROM.
System Defaults
Port-based VLAN
MAC address 00-00-00-00-00-00 not learned
Drop MAC addresses 01-80-C2-00-00-01~F
No IP multicast switching support
Trunking and mirroring disabled
MAC address agetime is 300 seconds
VLAN 802.1p prioritization
- All priority bits mapped to priority 0 (lowest)
96 queued unicast/multicast frames will trigger flow control
All WRED drop percentages equal to 0%
Unicast/multicast/broadcast flood control disabled
No shared or per-class buffer pools
Per-port Defaults
Disable per-port fixed priority and drop precedence
Disable asynchronous flow control
Spanning Tree per-port state equal to forwarding
Don’t filter tagged/untagged VLAN frames
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相关代理商/技术参数
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ZL50409 制造商:ZARLINK 制造商全称:Zarlink Semiconductor Inc 功能描述:Managed 9-Port 10/100M Ethernet Switch
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ZL50409GDC1 制造商:Microsemi Corporation 功能描述:
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