34
IDT82V2048 OCTAL T1/E1 SHORT HAUL LINE INTERFACE UNIT INDUSTRIAL TEMPERATURE RANGES
DFI: Driver Fault Interrupt Status Register (R, Address = 09H)
Symbol Position Default Description
DFI[7:0] DFI.7-0 00H
0 = (Default). Or after a DF read operation.
1 = Any transition on DFn (Corresponding DFMn is set to ‘1’).
RS: Software Reset Register (W, Address = 0AH)
Symbol Position Default Description
RS[7:0] RS.7-0 FFH
Writing to this register will not change the content in this register but initiate a 1 s reset cycle, which means all the registers
in the device are set to their default values.
PMON: Performance Monitor Configuration Register (R/W, Address = 0BH)
Symbol Position Default Description
- PMON.7-4 0000
0 = Normal operation. (Default)
1 = Reserved.
MC[3:0] PMON.3-0 0000
0000 = Normal operation without monitoring (Default)
0001 = Monitor Receiver 1
0010 = Monitor Receiver 2
0011 = Monitor Receiver 3
0100 = Monitor Receiver 4
0101 = Monitor Receiver 5
0110 = Monitor Receiver 6
0111 = Monitor Receiver 7
1000 = Normal operation without monitoring
1001 = Monitor Transmitter 1
1010 = Monitor Transmitter 2
1011 = Monitor Transmitter 3
1100 = Monitor Transmitter 4
1101 = Monitor Transmitter 5
1110 = Monitor Transmitter 6
1111 = Monitor Transmitter 7
DLB: Digital Loopback Configuration Register (R/W, Address = 0CH)
Symbol Position Default Description
DLB[7:0] DLB.7-0 00H
0 = Normal operation. (Default)
1 = Digital Loopback enabled.
LAC: LOS/AIS Criteria Configuration Register (R/W, Address = 0DH)
Symbol Position Default Description
LAC[7:0] LAC.7-0 00H
For E1 mode, the criterion is selected as below:
0 = G.775 (Default)
1 = ETSI 300 233
For T1 mode, the criterion meets T1.231.
ATAO: Automatic TAOS Configuration Register (R/W, Address = 0EH)
Symbol Position Default Description
ATAO[7:0] ATAO.7-0 00H
0 = No automatic transmit all ones. (Default)
1 = Automatic transmit all ones to the line side during LOS.
35
IDT82V2048 OCTAL T1/E1 SHORT HAUL LINE INTERFACE UNIT INDUSTRIAL TEMPERATURE RANGES
GCF: Global Configuration Register (R/W, Address = 0FH)
Symbol Position Default Description
-GCF.70
0 = Normal operation.
1 = Reserved.
AISE GCF.6 0
0 = AIS insertion to the system side disabled on LOS.
1 = AIS insertion to the system side enabled on LOS.
SCPB GCF.5 0
0 = Short circuit protection is enabled.
1 = Short circuit protection is disabled.
CODE GCF.4 0
0 = B8ZS/HDB3 encoder/decoder enabled.
1 = AMI encoder/decoder enabled.
JADP GCF.3 0
Jitter Attenuator Depth Select
0 = 32-bit FIFO (Default)
1 = 64-bit FIFO
JABW GCF.2
0
Jitter Transfer Function Bandwidth Select
0 = 2.5 Hz (T1); 1.7 Hz (E1) (Default)
1 = 5 Hz; 6.5 Hz
JACF[1:0] GCF.1-0
00
Jitter Attenuator Configuration
00 = JA not used. (Default)
01 = JA in transmit path
10 = JA not used.
11 = JA in receive path
TSIA: Indirect Address Register for Transmit Template Select Registers (R/W, Address = 10H)
Symbol Position Default Description
- TSIA.7-3 00000
0 = Normal operation. (Default)
1 = Reserved.
TSIA[2:0] TSIA.2-0 000
000 = Channel 0 (Default)
001 = Channel 1
010 = Channel 2
011 = Channel 3
100 = Channel 4
101 = Channel 5
110 = Channel 6
111 = Channel 7
TS: Transmit Template Select Register (R/W, Address = 11H)
Symbol Position Default Description
- TS.7-3 00000
0 = Normal operation. (Default)
1 = Reserved.
TS[2-0] TS.2-0 000
TS[2:0] select one of eight built-in transmit template for different applications.
TS[2:0] Mode Cable Length
000 E1 75 coaxial cable/120 twisted pair cable.
001
Reserved.
010
011 T1 0 - 133 ft.
100 T1 133 - 266 ft.
101 T1 266 - 399 ft.
110 T1 399 - 533 ft.
111 T1 533 - 655 ft.
OE: Output Enable Configuration Register (R/W, Address = 12H)
Symbol Position Default Description
OE[7:0] OE.7-0 00H
0 = Transmit drivers enabled. (Default)
1 = Transmit drivers in high-Z.
36
IDT82V2048 OCTAL T1/E1 SHORT HAUL LINE INTERFACE UNIT INDUSTRIAL TEMPERATURE RANGES
AIS: Alarm Indication Signal Status Register (R, Address = 13H)
Symbol Position Default Description
AIS[7:0] AIS.7-0 00H
0 = Normal operation. (Default)
1 = AIS detected.
AISM: Alarm Indication Signal Interrupt Mask Register (R/W, Address = 14H)
Symbol Position Default Description
AISM[7:0] AISM.7-0 00H
0 = AIS interrupt is not allowed. (Default)
1 = AIS interrupt is allowed.
AISI: Alarm Indication Signal Interrupt Status Register (R, Address = 15H)
Symbol Position Default Description
AISI[7:0] AISI.7-0 00H
0 = (Default), or after an AIS read operation
1 = Any transition on AISn. (Corresponding AISMn is set to ‘1’.)
ADDP: Address Pointer Control Register (R/W, Address = 1F H)
Symbol Position Default Description
ADDP[7:0] ADDP.7-0 00H
Two kinds of configuration in this register can be set to switch between primary register bank and expanded register bank.
When power up, the address pointer will point to the top address of primary register bank automatically.
00H = The address pointer points to the top address of primary register bank (default).
AAH = The address pointer points to the top address of expanded register bank.

82V2048DA

Mfr. #:
Manufacturer:
IDT
Description:
Telecom Interface ICs OCTAL T1/E1 LIU
Lifecycle:
New from this manufacturer.
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