Integrated T1 LH/SH Transceiver for DS1/DSX-1 or PRI Applications — LXT362
Table 11. Control Register #2 Read/Write, Address (A7-A0) = x010001x
Pattern
Bit
Name
Function
EPAT0 EPAT1
Selected
1 = Enable Remote loopback mode
0 = Disable Remote loopback mode
0
1
2
3
4
ERLOOP1
ELLOOP1
EALOOP
ENLOOP
ETAOS
0
0
1
1
0
1
0
1
Transmit TPOS/TNEG
1 = Enable Local loopback mode
0 = Disable Local loopback mode
Detect and transmit QRSS
1 = Enable Analog loopback mode
0 = Disable Analog loopback mode
In-band Loop Up Code
00001
1 = Enable Network loopback detection
0 = Disable Network loopback detection
In-band Loop Down Code
001
1 = Enable Transmit All Ones
0 = Disable Transmit All Ones
5
6
EPAT0
EPAT1
Selects internal data pattern transmission. See right
hand section of table for codes.
1 = Reset device states and clear all registers.
0 = Reset complete.
7
RESET
1. To enable Dual loopback (DLOOP), set both ERLOOP = 1 and ELLOOP = 1.
Table 12. Control Register #3 Read/Write, Address (A7-A0) = x010010x
Bit
Name
Description
1 = Disable jamming of Elastic Store read out clock (1/ bit-time adjustment for over/underflow).
8
0
ESJAM
0 = Enable jamming of Elastic Store read out clock
1 = Center ES pointer for a difference of 16 or 32, depending on depth (clears automatically).
0 = Centering completed
1
ESCEN
1 = Set elastic store depth to 64 bits.
0 = Set elastic store depth to 32 bits.
2
3
4
ES64
-
Reserved. Set to 0 for normal operation.
1 = Configure receiver equalizer for monitor mode application (DSX-1 monitor).
0 = Configure receiver equalizer for normal mode application
EQZMON
1 = Start Built-In Self Test.
5
6
7
SBIST
-
0 = Built-In Self Test complete.
Reserved. Set to 0 for normal operation.
1 = Set bandwidth of jitter attenuation loop to 6 Hz.
0 = Set bandwidth of jitter attenuation loop to 3 Hz.
JA6HZ
Datasheet
31
INTEL [ INTEL ]
