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型号： ICS1893BFLF
厂商： IDT, Integrated Device Technology Inc
文件页数： 96/133页
文件大小： 0K
描述： PHYCEIVER LOW PWR 3.3V 48-SSOP
标准包装： 30
系列： PHYceiver™
类型： PHY 收发器
规程： MII
电源电压： 3.14 V ~ 3.47 V
安装类型： 表面贴装
封装/外壳： 48-BSSOP（0.295"，7.50mm 宽）
供应商设备封装： 48-SSOP
包装： 管件
其它名称： 1893BFLF
Chapter 7 Management Register Set
ICS1893BF, Rev. F, 5/13/10
May, 2010
65
ICS1893BF Data Sheet Rev. F - Release
Copyright 2009, IDT, Inc.
All rights reserved.
7.6 Register 4: Auto-Negotiation Register
Table 7-11 lists the bits for the Auto-Negotiation Register. An STA uses this register to select the
ICS1893BF capabilities that it wants to advertise to its remote link partner. During the auto-negotiation
process, the ICS1893BF advertises (that is, exchanges) capability data with its remote link partner by using
a pre-defined Link Code Word. The Link Code Word is embedded in the Fast Link Pulses exchanged
between PHYs when the ICS1893BF has its Auto-Negotiation sublayer enabled. The value of the Link
Control Word is established based on the value of the bits in this register.
Note: For an explanation of acronyms used in Table 7-5, see Chapter 1, “Abbreviations and Acronyms”.
As per the IEEE Std 802.3u, during any write operation to any bit in this register, the STA must write the default value
to all Reserved bits.
7.6.1 Next Page (bit 4.15)
This bit indicates whether the ICS1893BF uses the Next Page Mode functions during the auto-negotiation
process. If bit 4.15 is logic:
Zero, then the ICS1893BF indicates to its remote link partner that these features are disabled. (Although
the default value of this bit is logic zero, the ICS1893BF does support the Next Page function.)
One, then the ICS1893BF advertises to its remote link partner that this feature is enabled.
Table 7-11. Auto-Negotiation Advertisement Register (register 4 [0x04])
Bit
Definition
When Bit = 0
When Bit = 1
Ac-
cess
SF
De-
fault
Hex
4.15 Next Page
Next page not supported
Next page supported
R/W
–
0
4.14 IEEE reserved
Always 0
N/A
CW
–
0
4.13 Remote fault
Locally, no faults detected
Local fault detected
R/W
–
0
4.12 IEEE reserved
Always 0
N/A
CW
–
0
4.11 IEEE reserved
Always 0
N/A
CW
–
0
1
4.10 IEEE reserved
Always 0
N/A
CW
–
0
4.9
100Base-T4
Always 0. (Not supported.)
N/A
CW
–
0
4.8
100Base-TX, full duplex
Do not advertise ability
Advertise ability
R/W
–
1
4.7
100Base-TX, half duplex Do not advertise ability
Advertise ability
R/W
–
1
E
4.6
10Base-T, full duplex
Do not advertise ability
Advertise ability
R/W
–
1
4.5
10Base-T half duplex
Do not advertise ability
Advertise ability
R/W
–
1
4.4
Selector Field bit S4
IEEE 802.3-specified default N/A
CW
–
0
4.3
Selector Field bit S3
IEEE 802.3-specified default N/A
CW
–
0
1
4.2
Selector Field bit S2
IEEE 802.3-specified default N/A
CW
–
0
4.1
Selector Field bit S1
IEEE 802.3-specified default N/A
CW
–
0
4.0
Selector Field bit S0
N/A
IEEE 802.3-specified
default
CW
–
1
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