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IA21140AF-PQF144I 参数 Datasheet PDF下载

IA21140AF-PQF144I图片预览
型号: IA21140AF-PQF144I
PDF下载: 下载PDF文件 查看货源
内容描述: PCI快速以太网控制器 [PCI FAST ETHERNET LAN CONTROLLER]
分类和应用: 外围集成电路控制器PC局域网以太网以太网:16GBASE-T
文件页数/大小: 19 页 / 97 K
品牌: INNOVASIC [ INNOVASIC, INC ]
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IA21140AF  
Preliminary Data Sheet  
PCI FAST ETHERNET LAN CONTROLLER  
Description  
The innovASIC IA21140AF Fast Ethernet LAN controller provides a direct interface connection to  
the PCI (Peripheral Component Interface) bus. It interfaces with the PCI bus by using on-chip  
control and status registers (CSR’s), and a shared CPU memory area. The memory is initialized once  
during setup to minimize CPU overhead during normal operation. Large receive and transmit  
FIFO’s are contained on-chip so no additional on board memory is required. The IA21140AF  
includes two on chip direct memory access (DMA) controllers with programmable burst size  
providing for low CPU utilization. A PCI clock frequency from dc to 33 MHz (20-33 MHz for  
operational network interface) is supported. Two network ports are supported. A serial standard 7-  
wire 10-Mbps port (SRL) and a media independent interface/symbol 10/100-Mbps port  
(MII/SYM). The 10 Mbps implements a direct interface to the external 10 Mbps front-end decoder  
(ENDEC). The 10/100 Mbps port supports two modes. The first is a 100BASE-X physical coding  
sublayer (PCS). The second is a full implementation of the MII standard. The IA21140AF functions  
in a full-duplex environment for either network port.  
Copyright 2001  
innovASIC  
ENG210010110-00  
www.innovasic.com  
Customer Support:  
The End of Obsolescence  
Page 3 of 19  
1-888-824-4184