XRT4000 Datasheet, PDF (35/46 Pages) Exar Corporation – Universal Multiprotocol Serial Interface

XRT4000
Scenario 7
75
TXD
82
SCTE
78 TXD 97
TX1
77
RX1
100
98
79 _{SCTE 96}
TX2
80
95
RX2
93
TXC
RXC
RXD
HDLC (L)
Options
DTE
DCE
87 TXC 87
90
RX3
88
84
88
TX3
96 RXC 79
93
RX2
95
82
80
TX2
97 RXD 78
100
RX1
98
77
75
TX1
T4000 (DTE)
T4000 (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 (Scenarios 7)
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
0
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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