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參數(shù)資料
| 型號(hào)： | Am79C874 |
| 廠商： | Advanced Micro Devices, Inc. |
| 英文描述： | NetPHY-1LP Low Power 10/100-TX/FX Ethernet Transceiver |
| 中文描述： | NetPHY - 1LP低功率10/100-TX/FX以太網(wǎng)收發(fā)器 |
| 文件頁數(shù)： | 32/60頁 |
| 文件大?。?/td> | 869K |
| 代理商： | AM79C874 |
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32
Am79C874
P R E L I M I N A R Y
PHY Identifier 2 Register (Register 3)
Table 13.
PHY Identifier 2 Register (Register 3)
Auto-Negotiation Advertisement Register (Register 4)
Table 14.
Auto-Negotiation Advertisement Register (Register 4)
Reg
Bit
Name
Description
Read/
Write
Default
3
15:10
OUI
Assigned to the 19th through 24th bits of the OUI.
RO
010101
3
9:4
Model Number
Six-bit manufacturer
’
s model number.
RO
100001
3
3:0
Revision Number
Four-bit manufacturer
’
s revision number.
RO
1011
Reg
Bit
Name
Description
Read/
Write
Default
4
15
Next Page
1 = Next Page enabled.
0 = Next Page disabled.
RW
0
4
14
Acknowledge
This bit will be set internally after receiving three consecutive
and consistent FLP bursts.
RO
0
4
13
Remote Fault
1 = Remote fault supported.
0 = No remote fault.
RW
0
4
12:11
Reserved
For future technology.
RW
0
4
10
FDFC
Full Duplex Flow Control:
1 = Advertise that the DTE(MAC) has implemented both the
optional MAC control sublayer and the pause function as
specified in clause 31 and annex 31 B of 802.3u.
0 = No MAC-based full duplex flow control.
RW
0
4
9
100BASE-T4
NetPHY-1LP device does not support 100BASE-T4 function,
i.e., this bit ties to zero.
RO
0
4
8
100BASE-TX
Full Duplex
1 = 100BASE-TX Full Duplex.
0 = No 100BASE-TX Full Duplex ability.
Default is set by Register 1.14.
RW
set by
TECH [2:0]
pins
4
7
100BASE-TX
Half Duplex
1 = 100BASE-TX Half Duplex.
0 = No 100BASE-TX Half Duplex capability.
Default is set by Register 1.13
RW
set by
TECH[2:0]
pins
4
6
10BASE-T
Full Duplex
1 = 10 Mbps Full Duplex.
0 = No 10 Mbps Full Duplex capability.
Default is set by Register 1.12.
RW
set by
TECH[2:0]
pins
4
5
10BASE-T
Half Duplex
1 = 10 Mbps Half Duplex.
0 = No 10 Mbps Half Duplex capability
Default is set by Register 1.11.
RW
set by
TECH[2:0]
pins
4
4:0
Selector Field
[00001] = IEEE 802.3.
RO
00001
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