Datasheet
DS26303: 3.3V, T1/E1/J1, Short-Haul, Octal Line Interface Unit
24 of 101
5 REGISTERS
Five address bits are used to control the settings of the registers. AD[4:0] are used in both the parallel
nonmultiplexed mode and in multiplexed mode. In serial mode, the address is input serially on SDI. The register
space contains control for channels 1 to 8 from address 00 hex to 1F hex. The
ADDP (1F) register is used as a
pointer to access the different banks of registers. This register must be set to AA hex for access of the secondary
bank of registers, 01 hex for access to the individual LIU bank of registers, and 02 hex for access of the BERT
bank of registers. The primary bank of registers is accessed upon reset of this register to 00 hex.
Table 5-1. Primary Register Set
ADDRESS
REGISTER NAME
HEX
PARALLEL
INTERFACE
A[7:0] (HEX)
SERIAL
INTERFACE
A[7:1] (HEX)
RW
Identification ID 00 xxx00000 xx00000 R
Analog Loopback Configuration ALBC 01 xxx00001 xx00001 RW
Remote Loopback Configuration RLBC 02 xxx00010 xx00010 RW
Transmit All-Ones Enable TAOE 03 xxx00011 xx00011 RW
Loss-of-Signal Status LOSS 04 xxx00100 xx00100 RW
Driver Fault Monitor Status DFMS 05 xxx00101 xx00101 RW
Loss-of-Signal Interrupt Enable LOSIE 06 xxx00110 xx00110 RW
Driver Fault Monitor Interrupt Enable DFMIE 07 xxx00111 xx00111 RW
Loss-of-Signal Interrupt Status LOSIS 08 xxx01000 xx01000 R
Driver Fault Monitor Interrupt Status DFMIS 09 xxx01001 xx01001 R
Software Reset SWR 0A xxx01010 xx01010 W
G.772 Monitor Control GMC 0B xxx01011 xx01011 RW
Digital Loopback Configuration DLBC 0C xxx01100 xx01100 RW
LOS/AIS Criteria Selection LASCS 0D xxx01101 xx01101 RW
Automatic Transmit All-Ones Select ATAOS 0E xxx01110 xx01110 RW
Global Configuration GC 0F xxx01111 xx01111 RW
Template Select Transceiver TST 10 xxx10000 xx10000 RW
Template Select TS 11 xxx10001 xx10001 RW
Output-Enable Bar OEB 12 xxx10010 xx10010 RW
Alarm Indication Signal Status AIS 13 xxx10011 xx10011 R
AIS Interrupt Enable AISIE 14 xxx10100 xx10100 RW
AIS Interrupt Status AISIS 15 xxx10101 xx10101 R
Reserved — 16–1E
xxx10110–
xxx11110
xx10110–
xx11110
—
Address Pointer for Bank Selection ADDP 1F xxx11111 xx11111 RW