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IP178A PDF预览
型号:
IP178A
Datasheet下载:
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产品描述:
8-Port 10/100 Ethernet Integrated Switch
应用标签:
以太网局域网(LAN)标准
文档页数/大小:
44页 / 1145K
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品牌名称:
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IP178A

应用: 以太网局域网(LAN)标准

文档: 44页 / 1145K

品牌: 其他

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IHS 制造商
IC PLUS CORP
包装说明
,
Reach Compliance Code
unknown
风险等级
5.63
Is Samacsys
N
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(Advance Version
IP178A
8-Port 10/100 Ethernet Integrated Switch
Feature
Three-in-one 8 port 10/100 Ethernet switch
- Built in an 8 port Ethernet switch engine
-
Built in 8 10/100M transceivers
-
Built in SSRAM
Support flow control
- Support IEEE802.3x for full duplex mode operation
- Support backpressure for half duplex mode
operation
Built in up to 1K MAC address
An 8 port switching fabric
- Support two-level hashing algorithm to improve
address collision
- Support address aging
-
Store and forward mode
-
Broadcast storm protection
-
Full line speed capability of 148800 (14880)
packets/sec for 100M (10M)
-
Support 1536 byte data transfer for VLAN traffic
-
Support one MII port
-
Support port base VLAN
-
Support CoS
DSP approach transceivers
-
Auto negotiation
-
Fully digital adaptive equalizer and timing recovery
module
-
Base line Wander correction
-
10BaseT, 100BaseT, and 100BaseFX(port6, port7
only) operation
-
Automatic MDI/MDI-X configuration
LED status of Link, Receive, Full duplex, and Speed
LED with power on diagnostic function
Set operation parameters via pins or EEPROM
Preliminary, Specification subject to change without notice
IP178A-DS-P05
Sep. 09, 2002
interface
Utilize single clock source (25Mhz)
Utilize single power supply (2.5v)
0.25um technology
Packaged in 208 pin PQFP
General Description
IP178A is an 8 port 10/100 Ethernet integrated switch. It
consists of an 8-port switch controller and eight Fast
Ethernet transceivers. Each of the transceivers complies
with the IEEE802.3, IEEE802.3u, and IEEE802.3x
specifications. The transceivers in IP178A are designed
in DSP approach with advance 0.25um technology; this
results in high noise immunity and robust performance.
Two ports of IP178A can be configured as 100BaseFX.
The IP178A operates in store and forward mode. It
stores the incoming packet to the internal SSRAM and
learns the SA (source address) automatically if the
packet is error free. The SA is stored to the internal
address table. IP178A forwards a packet according to DA
and address table. When the segments of destination
ports are free, it reads the packet from the internal
SSRAM and forwards it to the appropriate ports
according to the address table. The incoming packets
with errors are dropped. IP178A supports IEEE802.3x,
optional backpressure, Auto MDI/MDI-X, CoS, port base
VLAN, one MII port and various LED functions, etc.
These functions can be configured to fit the different
requirements by feeding operation parameters via
EEPROM interface or pull up/down resistors on specified
pins.
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