DJLXT386LE.B2 S E001 Intel, DJLXT386LE.B2 S E001 Datasheet - Page 57

• Manufacturer Part Number: DJLXT386LE.B2 S E001
• Manufacturer: Intel

Specifications of DJLXT386LE.B2 S E001

• Lead Free Status / RoHS Status: Not Compliant

5.5.2
Datasheet
Table 32. Analog Port Scan Register – ASR
Analog Port Scan Register (ASR)
The ASR is a 5 bit shift register used to control the analog test port at pins AT1, AT2. When the
INTEST_ANALOG instruction is selected, TDI connects to the ASR input and TDO connects to
the ASR output. After 5 TCK rising edges, a 5 bit control code is loaded into the ASR. Data into
the ASR is shifted in LSB first.
Table 32
The Analog Test Port can be used to verify continuity across the coupling transformers primary
winding.
The Analog Test Port can be used to verify continuity across the coupling transformer’s primary
winding as shown in
appear at AT2 for a given load. This, in effect, tests the continuity of a receive or transmit interface.
ASR Control Code
shows the 8 possible control codes and the corresponding operation on the analog port.
10101
10100
10010
10001
10000
11101
11100
11011
11010
11001
11000
10111
10110
10011
11111
11110
Figure
17. By applying a stimulus to the AT1 input, a known voltage will
AT1 Forces Voltage To:
RTIP0
RTIP1
RTIP2
RTIP3
TTIP0
TTIP1
TTIP2
TTIP3
QUAD T1/E1/J1 Transceiver — LXT386
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
AT2 Senses Voltage From:
TRING0
TRING1
TRING2
TRING3
RRING0
RRING1
RRING2
RRING3
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