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TNETX4090 数据表(PDF) 13 Page - Texas Instruments

部件名 TNETX4090
功能描述  ThunderSWITCH IIE 9-PORT 100-/1000-MBIT/S ETHERNETE SWITCH
PDF  78 Pages
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制造商  TI1 [Texas Instruments]
网页  http://www.ti.com
标志 TI1 - Texas Instruments

TNETX4090 数据表(HTML) 13 Page - Texas Instruments

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TNETX4090
ThunderSWITCH II™ 9-PORT 100-/1000-MBIT/S ETHERNET™ SWITCH
SPWS044E – DECEMBER 1997 – REVISED AUGUST 1999
13
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
Terminal Functions (Continued)
10-/100-Mbit/s MAC interface (MII mode) (ports 0–7) (continued)
TERMINAL
I/O
INTERNAL
DESCRIPTION
NAME
NO.
I/O
RESISTOR
DESCRIPTION
M00_RXER
M01_RXER
M02_RXER
M03_RXER
M04_RXER
M05_RXER
M06_RXER
M07_RXER
C19
C14
B9
B4
L4
T3
AA2
AD8
I
Pulldown
Receive error. Indicates reception of a coding error on received data.
M00_TCLK
M01_TCLK
M02_TCLK
M03_TCLK
M04_TCLK
M05_TCLK
M06_TCLK
M07_TCLK
B23
C17
C13
A8
F1
L2
T1
AD4
I
Pullup
Transmit clock. Transmit clock source from the attached PHY or PMI device.
M00_TXD3
M00_TXD2
M00_TXD1
M00_TXD0
M01_TXD3
M01_TXD2
M01_TXD1
M01_TXD0
M02_TXD3
M02_TXD2
M02_TXD1
M02_TXD0
M03_TXD3
M03_TXD2
M03_TXD1
M03_TXD0
M04_TXD3
M04_TXD2
M04_TXD1
M04_TXD0
M05_TXD3
M05_TXD2
M05_TXD1
M05_TXD0
M06_TXD3
M06_TXD2
M06_TXD1
M06_TXD0
M07_TXD3
M07_TXD2
M07_TXD1
M07_TXD0
C22
B22
A22
A23
C18
B18
A18
A19
D12
C12
B12
A12
D7
C7
B7
A7
G4
G3
G2
G1
M4
M3
M2
M1
U4
U3
U2
U1
AC5
AD5
AE5
AF5
O
None
Transmit data. Byte transmit data. When Mxx_TXEN is asserted, these signals carry
transmit data. Data on these signals is synchronous to Mxx_TCLK. When Mxx_TXEN,
Mxx_TXER, and Mxx_LINK are all low, these terminals indicate the desired capabilities for
autonegotiation as follows:
– Mxx_TXD0 indicates full-duplex capability when high; half duplex when low, as
determined by reqhd in PortxControl.
– Mxx_TXD1 indicates IEEE Std 802.3 pause frame support when high; no pause
when low, as determined by reqnp in PortxControl.
– Mxx_TXD2 indicates 100 Mbit/s when high; 10 Mbit/s when low, as determined by
req10 in PortxControl.
– Mxx_TXD3 is unused and is 0.



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