欢迎访问ic37.com |
会员登录 免费注册
发布采购

CS8900A-IQ3 参数 Datasheet PDF下载

CS8900A-IQ3图片预览
型号: CS8900A-IQ3
PDF下载: 下载PDF文件 查看货源
内容描述: 水晶局域网? ISA以太网控制器 [Crystal LAN ⑩ ISA Ethernet Controller]
分类和应用: 控制器局域网以太网
文件页数/大小: 128 页 / 1360 K
品牌: CIRRUS [ CIRRUS LOGIC ]
 浏览型号CS8900A-IQ3的Datasheet PDF文件第100页浏览型号CS8900A-IQ3的Datasheet PDF文件第101页浏览型号CS8900A-IQ3的Datasheet PDF文件第102页浏览型号CS8900A-IQ3的Datasheet PDF文件第103页浏览型号CS8900A-IQ3的Datasheet PDF文件第105页浏览型号CS8900A-IQ3的Datasheet PDF文件第106页浏览型号CS8900A-IQ3的Datasheet PDF文件第107页浏览型号CS8900A-IQ3的Datasheet PDF文件第108页  
CS8900A  
Crystal LAN™ ISA Ethernet Controller  
Enter Packet Transmit Process  
Is  
TxCMD  
pending?  
Exit: can’t Issue command  
Yes  
Note: Issuing a command  
at this point will cause  
previous transmit frame  
to be lost.  
No  
Host Writes Transmit Command  
to the TxCMD Register  
Host Writes Transmit Frame  
Length to the TxLength Register  
Transmit Request  
Host Reads the BusST  
Register (Register 18)  
Rdy4  
Yes  
TxNOW  
bit = 1?  
No  
Exit WAIT-for-interrupt  
Host Enters Interrupt Routine  
Host Reads  
ISQ  
CS8900A Commits  
Buffer Space to  
Transmit Frame  
No  
Yes  
Rdy4Tx  
bit = 1?  
Host Writes  
Transmit Frame  
to CS8900A  
Process other events  
that caused interrupt  
CS8900A  
Transmits Frame  
Exit Transmit Process  
Figure 31. Transmit Operation in Interrupt Mode  
any yet-to-be-transmitted frames queued in the  
on-chip memory, are cleared and not transmit-  
ted. The host should make TxLength = 0 when  
using the Force bit.  
3) There is a transmit under-run, and the Tx-  
Underrun bit (Register C, BufEvent, Bit 9) is  
set.  
Successful transmission is indicated when the  
TxOK bit (Register 8, TxEvent, Bit 8) is set.  
Or:  
CIRRUS LOGIC PRODUCT DATA SHEET  
104  
DS271PP3  
 复制成功!