參數(shù)資料
型號(hào): ICSXXXXY
英文描述: Auto-Negotiation Advertisement Register (register 4 [0x04])
中文描述: 自動(dòng)談判廣告登記(注冊(cè)4 [0x04])
文件頁數(shù): 26/66頁
文件大小: 1725K
代理商: ICSXXXXY
26
ICS1890
Remote Fault (bit 13)
Management may set this bit to a
logic one, which sets the remote fault bit in the transmitted
base link code word to a logic one. This indicates to the link
partner that an error has been detected at this end.
The Auto-Negotiation Power-up Remote Fault option (19:4)
can also cause the remote fault bit in the transmitted base link
code word to be set to a logic one.
Technology Ability Field (bits 12:5)
This 8-bit field
specifies the data transmission technologies supported by
the
ICS1890
. On power-up when the HW/SW pin is set to SW,
these bits are set to the values specified in the MII Status
register. When the HW/SW pin is set to HW and ANSEL is
enabled, the single bit corresponding to the values of the
DPXSEL and 10/100SEL pins is enabled. All bits, except the
100Base-T4 (unsupported technology bit) may be set or cleared
allowing management to select the advertised technologies.
Note that bits 12-10 are currently reserved by the IEEE Auto-
Negotiation standard and should always be set to logic zero.
Selector Field (bits 4:0)
This 5-bit field is used to select
the technology supported by the
ICS1890
. It defaults to
select IEEE 802.3 (00001). These bits can only be written using
the command override mode and should only be set to a
different value as allowed by the IEEE standard
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