參數(shù)資料
型號(hào)： LU6612
廠商： Lineage Power
英文描述： Single-FET for 10Base-T/100Base-TX(應(yīng)用于10基數(shù)-T和100基數(shù)-TX 的單快速以太網(wǎng)收發(fā)器)
中文描述： 單為10BASE-T/100BASE-TX快速以太網(wǎng)場(chǎng)效應(yīng)晶體管（應(yīng)用于10基數(shù)- T的和100基數(shù)，得克薩斯州的單快速以太網(wǎng)收發(fā)器）
文件頁(yè)數(shù)： 20/36頁(yè)
文件大?。?/td> 528K
代理商： LU6612
LU6612
FASTCAT Single-FET for 10Base-T/100Base-TX
Data Sheet
July 2000
20
Lucent Technologies Inc.
MII Station Management
(continued)
Table 17. MR28—Device-Specific Register 1 (Status Register) Bit Descriptions
1. Note that the format for the pin descriptions is as follows: the first number is the register number, the second number is the bit position in the
register, and the name of the instantiated pad is in capital letters.
2. R = read, LH = latched high.
Bit
1
Type
2
R
R/LH
Description
28.15:9 (R28[15:9])
28.8 (BAD_FRM)
Unused.
Read as 0.
Bad Frame.
If this bit is a 1, it indicates a packet has been received without an
SFD. This bit is only valid in 10 Mbits/s mode.
This bit is latching high and will only clear after it has been read or the device has
been reset. The default is 0.
Code Violation.
When this bit is a 1, it indicates a Manchester code violation has
occurred. The error code will be output on the RXD lines. Refer to Table 1 for a
detailed description of the RXD pin error codes. This bit is only valid in 10 Mbits/s
mode.
28.7 (CODE)
R/LH
This bit is latching high and will only clear after it has been read or the device has
been reset. The default is 0.
Autopolarity Status.
When register 30, bit 3 is set and this bit is a 1, it indicates
the LU6612 has detected and corrected a polarity reversal on the twisted pair.
28.6 (APS)
R
If the APF_EN bit (register 30, bit 3) is set, the reversal will be corrected inside the
LU6612. This bit is not valid in 100 Mbits/s operation. The default is 0.
Disconnect.
If this bit is a 1, it indicates a disconnect. This bit will latch high until
read. This bit is only valid in 100 Mbits/s mode. The default is 0.
Unlocked.
Indicates that the TX scrambler lost lock. This bit will latch high until
read. This bit is only valid in 100 Mbits/s mode. The default is 0.
RX Error Status.
Indicates a false carrier. This bit will latch high until read. This
bit is only valid in 100 Mbits/s mode. The default is 0.
Force Jam.
This bit will latch high until read. This bit is only valid in 100 Mbits/s
mode. The default is 0.
Link Up 100.
This bit, when set to a 1, indicates a 100 Mbits/s transceiver is up
and operational. The default is 0.
Link Up 10.
This bit, when set to a 1, indicates a 10 Mbits/s transceiver is up and
operational. The default is 0.
28.5 (DISCON)
R/LH
28.4 (UNLOCKED)
R/LH
28.3 (RXERR_ST)
R/LH
28.2 (FRC_JAM)
R/LH
28.1 (LNK100UP)
R
28.0 (LNK10UP)
R
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