Filter
Top Products
TNETX3270
ThunderSWITCH 24/3 ETHERNET SWITCH
WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS
SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999
33
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
Pause (0 = no pause)
Half Duplex
Half Duplex
(0 = full duplex)
Autonegotiation Begins
Link Good
(0 = full duplex)
TNETE2008 latches final values,
just before autonegotiation the
fast-link pulse exchange begins.
1200-ms Min 80-ms Min 750-ms Min
Clock Runs Continuously
THxTXEN
(output)
THxCLK
(input)
THxTXD3
(output)
THxTXD2
(output)
THxTXD1
(output)
THxTXD0
(output)
THxLINK
(input)
THxRXDV
(input)
THxRXD3
(input)
THxRENEG
(output)
THxRXD2
(input)
THxRXD1
(input)
THxRXD0
(input)
Will be 0 Will be 0
Will be 0
(1 = pause granted)
(1 = half duplex)
(1 = pause granted)
THxCLK
(input)
THxLINK
(input)
THxRXDX
(input)
THxRXD
Final Value
THxLINK = 1
(THxRXD final value latched)
Must be 0
(1 = pause requested)
Must be 0
Will be 0
Link Fails OR
Renegotiation
Negotiated
Link Protocol
Latch Final
Values
When Link
Pause (0 = no pause)
Figure 7. Connecting to TNETE2008 PHY
†
†
THx = TH0, TH1, and TH2