參數(shù)資料
型號: HOME
英文描述: Home PHY Single-Chip 1/10Mbps Home Networking PHY? - (PDF)
中文描述: 首頁P(yáng)HY的單芯片1/10Mbps家庭網(wǎng)絡(luò)物理層? - (PDF格式)
文件頁數(shù): 58/90頁
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代理商: HOME
58
Am79C901A
P R E L I M I N A R Y
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. See Table 42.
Table 42.
TBR1: 10BASE-T PHY Status Register (Register 1)
Note:
1. LH = Latching High, LL = Latching Low.
Bits
Name
Description
Read/Write
(Note 1)
Default
Value
(hex)
15
100BASE-T4
1 = 100BASE-T4 able
0 = Not 100BASE-T4 able
R
0
14
100BASE-X Full-Duplex
1 = 100BASE-X full-duplex able
0 = Not 100BASE-X full-duplex able
R
0
13
100BASE-X Half-Duplex
1 = 100BASE-X half-duplex able
0 = Not 100BASE-X half-duplex able
R
0
12
10 Mbps Full-Duplex
1 = 10 Mbps full-duplex able
0 = Not 10 Mbps full-duplex able
R
1
11
10 Mbps Half-Duplex
1 = 10 Mbps half-duplex able
0 = Not 10 Mbps half-duplex able
R
1
10:7
Reserved
Ignore when read
R
X
6
Management Frame Preamble
Suppression
1 = PHY can accept management (mgmt)
frames with or without preamble
0 = PHY can only accept mgmt frames with
preamble
R
1
5
Auto-Negotiation Complete
1 = Auto-Negotiation completed
0 = Auto-Negotiation not completed
R
0
4
Remote Fault
1 = Remote fault detected
0 = No remote fault detected
R, LH
(Note 1)
0
3
Auto-Negotiation Ability
1 = PHY able to auto-negotiate,
0 = PHY not able to auto-negotiate
R
1
2
Link Status
1 = Link is up
0 = Link is down
R, LL
(Note 1)
0
1
Jabber Detect
1 = Jabber condition detected
0 = No jabber condition detected
R
0
0
Extended Capability
1 = Extended register capabilities
0 = Basic register set capabilities only
R
1
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