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AM79C978KC/W 参数 Datasheet PDF下载

AM79C978KC/W图片预览
型号: AM79C978KC/W
PDF下载: 下载PDF文件 查看货源
内容描述: 单芯片1/10 Mbps的PCI家庭网络控制器 [Single-Chip 1/10 Mbps PCI Home Networking Controller]
分类和应用: 控制器PC
文件页数/大小: 261 页 / 3499 K
品牌: AMD [ AMD ]
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TBR1: 10BASE-T Status Register (Register 1)  
The Status Register identifies the physical and Auto-  
negotiation capabilities of the local PHY. This register is  
read only; a write will have no effect.  
Table 66. TBR1: 10BASE-T PHY Status Register (Register 1)  
Read/Write  
Default  
Value  
Bits  
Name  
Description  
(Note 1)  
1 = 100BASE-T4 able,  
0 = not 100BASE-T4 able  
15  
100BASE-T4  
RO  
0
0
0
1
1 = 100BASE-X full-duplex able,  
0 = not 100BASE-X full-duplex able  
14  
13  
12  
100BASE-X Full-Duplex  
100BASE-X Half-Duplex  
10 Mbps Full-Duplex  
RO  
RO  
RO  
1 = 100BASE-X half-duplex able,  
0 = not 100BASE-X half-duplex able  
1 = 10 Mbps full-duplex able,  
0 = not 10 Mbps full-duplex able  
1 = 10 Mbps half-duplex able,  
0 = not 10 Mbps half-duplex able  
11  
10 Mbps Half-Duplex  
Reserved  
RO  
RO  
1
10-7  
Ignore when read  
NA  
1 = PHY can accept management (mgmt)  
frames with or without preamble, 0 = PHY  
can only accept mgmt frames with  
preamble  
6
MF Preamble Suppression  
RO  
1
1 = Auto-Negotiation completed,  
0 = Auto-Negotiation not completed  
5
4
3
2
1
0
Auto-Negotiation Complete  
Remote Fault  
RO  
RO, LH  
RO  
0
0
1
0
0
1
1 = remote fault detected,  
0 = no remote fault detected  
1 = PHY able to auto-negotiate,  
0 = PHY not able to auto-negotiate  
Auto-Negotiation Ability  
Link Status  
1 = link is up,  
0 = link is down  
RO, LL  
RO  
1 = jabber condition detected,  
0 = no jabber condition detected  
Jabber Detect  
1 = extended register capabilities,  
0 = basic register set capabilities only  
Extended Capability  
RO  
Note:  
1. LH = Latching High, LL = Latching Low.  
190  
Am79C978