XRT5794ES Datasheet, PDF (4/11 Pages) Exar Corporation – Evaluation System

XRT5794ES
Tables 3, 4 and 5, which are given below, list the switch position, XR-T5794 pin controlled, signal symbol, and
function of the three demo board DIP switches.
Switch Position
1
2
3
4
(Not Used)
IC Pin
33
34
37
Symbol
MSEL0
MSEL1
MSEL2
Switch Setting
Off
On
Off
On
On
Off
Function
MSEL0 = Logic 1
MSEL0 = Logic 0
MSEL1 = Logic 1
MSEL1 = Logic 0
MSEL2 = Logic 1
MSEL2 = Logic 0
Table 3. Dip Switch S1 Functions
Switch Position
1
2
3
4
5
6
7
IC Pin
61
62
60
52
51
50
42
8
41
Symbol
TXEN2
TXEN1
ZSEL
LPEN2
LPEN1
E1/T1B
LPMOD2
LPMOD1
Switch Setting
Off
On
Off
On
Off
On
Off
On
Off
On
Off
On
Off
On
Off
On
Function
Transmitter 2 Output Enabled
Transmitter 2 Output High Impedence
Transmitter 1 Output Enabled
Transmitter 1 Output High Impedance
120 W Mode Selected
75 W Mode Selected
Channel 2 Loop Mode Enabled
Channel 2 Normal Operation
Channel 1 Loop Mode Enabled
Channel 1 Normal Operation
E1 Mode Selected
T1 Mode Selected
Channel 2 Remote Loop Back Mode
Selected
Channel 2 Local Loop back Mode Selected
Channel 1 remote Loopback Mode
Selected
Channel 1 Local Loop Back Mode
Selected
Table 4. Dip Switch S2 Functions
Rev. 2.00
8