XRT4000 Datasheet, PDF (31/46 Pages) Exar Corporation – Universal Multiprotocol Serial Interface

XRT4000
Scenario 3
75
TXD
82
SCTE
78
TXD
97
TX1
77
RX1
100
98
79
SCTE
96
TX2
80
95
RX2
93
TXC
90
93
RXC
RXD
100
HDLC (L)
87
RX3
88
96
RX2
95
97
RX1
98
T4000 (DTE)
TXC
RXC
RXD
87
84
88
TX3
79
82
TX2
80
78
75
77
TX1
T4000 (DCE)
Options
DTE
DCE
Normal
Echo Mode
3 Clocks
2 Clocks
1 Clock (X.21)
No Loopback
Loopback
RXD
RXC
TXC
SCTE
TXD
HDLC (R)
No Invert
Invert
Input Pin Settings (Scenario 3)
Pin Number
39
42
65
22
67
68
66
T4000 (DTE)
Name
DCE/DTE*
EC*
2CK/3CK*
LP*
CKINV*
DTINV*
EN_OSC*
State
0
1
0
0
1
1
1
Pin Number
39
42
65
22
67
68
66
T4000 (DCE)
Name
DCE/DTE*
EC*
2CK/3CK*
LP*
CKINV*
DTINV*
EN_OSC*
State
1
1
0
1
1
1
1
Rev. 1.00
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