82V2048DA IDT, Integrated Device Technology Inc, 82V2048DA Datasheet - Page 38

• Manufacturer Part Number: 82V2048DA
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of 82V2048DA

• Screening Level: Industrial
• Mounting: Surface Mount
• Package Type: TQFP
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Lead Free Status / RoHS Status: Not Compliant

e-LBCF: Inband Loopback Configuration Register
1.
e-LBDC: Inband Loopback Deactivation Code Register
1.
2.
e-LBS: Inband Loopback Receive Status Register (R, Expanded Address = 0BH)
e-LBM: Inband Loopback Interrupt Mask Register (R/W, Expanded Address = 0CH)
e-LBAC: Inband Loopback Activation Code Register
1.
2.
IDT82V2048 OCTAL T1/E1 SHORT HAUL LINE INTERFACE UNIT
This register is global control.
When setting a value in e-LBAC or e-LBDC that is less than 8 bits, the most significant bits must be replicated in the unused least significant bits. e.g. if setting a 5-bit code = 11000, the
This register is global control.
This register is global control.
When setting a value in e-LBAC or e-LBDC that is less than 8 bits, the most significant bits must be replicated in the unused least significant bits. e.g. if setting a 5-bit code = 11000,
register value should be 11000110. Here b7 is repeated in b2; b6 is repeated in b1; b5 is repeated in b0.
the register value should be 11000110. Here b7 is repeated in b2; b6 is repeated in b1; b5 is repeated in b0.
LBDC[7:0]
LBDL[1:0]
LBAC[7:0]
LBAL[1:0]
LBM[7:0]
LBS[7:0]
Symbol
Symbol
Symbol
Symbol
Symbol
LBDE
ALBE
-
LBDC.7-0
LBCF.7-6
LBCF.3-2
LBCF.1-0
LBAC.7-0
Position
Position
Position
Position
Position
LBM.7-0
LBS.7-0
LBCF.5
LBCF.4
Default
Default
Default
Default
00H
00H
00H
Default
00
00
00
0
0
00H
0 = Normal Operation. (Default)
1 = Reserved.
Loopback Detector Enable
0 = Inband loopback code detection is disabled. (Default)
1 = Inband loopback code detection is enabled.
Automatic Loopback Enable
0 = Automatic Inband Loopback disabled.
1 = Automatic Inband Loopback enabled.
Loopback Activate Code Length
00 = 5-bit long activate code in LBAC[7:3] is effective.
01 = 6-bit long activate code in LBAC[7:2] is effective.
10 = 7-bit long activate code in LBAC[7:1] is effective.
11 = 8-bit long activate code in LBAC[7:0] is effective.
Loopback Deactivate Code Length
00 = 5-bit long deactivate code in LBDC[7:3] is effective.
01 = 6-bit long deactivate code in LBDC[7:2] is effective.
10 = 7-bit long deactivate code in LBDC[7:1] is effective.
11 = 8-bit long deactivate code in LBDC[7:0] is effective.
LBDC[7:0] = 8-bit (or 4-bit) repeating deactivate code is programmed with the length limitation set by LBDL[1:0] bits.
LBDC[7:1] = 7-bit repeating deactivate code is programmed with the length limitation set by LBDL[1:0] bits.
LBDC[7:2] = 6-bit (or 3-bit) repeating deactivate code is programmed with the length limitation set by LBDL[1:0] bits.
LBDC[7:3] = 5-bit repeating deactivate code is programmed with the length limitation set by LBDL[1:0] bits.
0 = Normal operation (Default). Or loopback deactivation code detected.
1 = Loopback activation code detected.
0 = LBI interrupt is not allowed (Default)
1 = LBI interrupt is allowed.
LBAC[7:0] = 8-bit (or 4-bit) repeating activate code is programmed with the length limitation in LBAL[1:0].
LBAC[7:1] = 7-bit repeating activate code is programmed with the length limitation in LBAL[1:0].
LBAC[7:2] = 6-bit (or 3-bit) repeating activate code is programmed with the length limitation in LBAL[1:0].
LBAC[7:3] = 5-bit repeating activate code is programmed with the length limitation in LBAL[1:0].
(1)
(R/W, Expanded Address = 08H)
(1)(2)
(1)(2)
(R/W, Expanded Address = 09H)
(R/W, Expanded Address = 0AH)
38
Description
Description
Description
Description
Description
INDUSTRIAL TEMPERATURE RANGES