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: 90/144页
文件大小: 1779K
代理商: ZL50408GDG2
ZL50408
Data Sheet
5
Zarlink Semiconductor Inc.
January 2005
reduce min. hold time from 1ns to 0.5ns
reduced max. output delay by 1ns
Removed reference to direct register INDEX_REG1 (address 0x1) from SSI diagrams, as not applicable
June 2005
Clarified that port mirroring is only available if the source & destination ports are in RMII mode
Updated PVMODE bit [5] to reflect the proper MAC address range: 01-80-C2-00-00-00~F
Clarified DATAOUT output can be open-drain or totem-pole based on debounce selection via bootstrap
TSTOUT[0]
Added power sequencing recommendation (1.7, “Power Sequencing“ on page 26)
Added Reverse MII/GPSI timing characteristics (13.4.10, “Reverse General Purpose Serial Interface
Clarified that counter “DelayExceededDiscards” is not applicable for the ZL50408 (11.0, “Hardware Statistics
December 2005
Clarified that TRST signal should be externally tied to GND via weak resistor, as per JTAG standard (1.3,
Added more text to section 2.8, “JTAG“ on page 29
Added more explaination to VLAN ID Hashing feature: register FEN, bit [3]
Removed definition for SE_OPMODE bit[5] (ARP report control), as this feature was not implemented and
this bit was mistakenly left in the register definition.
April 2006
Added Pb-free order code (ZL50408GDG2)
Added section on multicast MAC address learning/switching (5.11, “L2 Multicast Switching“ on page 44)
since it wasn’t really discussed in the DS
Clarified registers UCC, MCC & MCCTH
Renamed register UCC (now PCC), as name was misleading
Updated timing to CPU RvMII, as min. output delay should have been 0 ns
July 2006
Added typical values to power numbers in “Recommended Operating Conditions” table.
Updated RM6 “CPU_MII_TXEN Output Delay Time” & RM7 “CPU_MII_TXD[3:0] Output Delay Time” max. to
5 ns (old 14 ns)
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