82V2044BB IDT, Integrated Device Technology Inc, 82V2044BB Datasheet - Page 38

• Manufacturer Part Number: 82V2044BB
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of 82V2044BB

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

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-LBI: Inband Loopback Interrupt Status Register (R, Expanded Address = 0DH)
e-LBGS: Inband Loopback Activate/Deactivate Code Generator Selection Register (R/W, Expanded Address = 0EH)
e-LBGE: Inband Loopback Activate/Deactivate Code Generator Enable Register (R/W, Expanded Address = 0FH)
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.
register value should be 11000110. Here b7 is repeated in b2; b6 is repeated in b1; b5 is repeated in b0.
IDT82V2044
LBDC[7:0]
LBGS[3:0]
LBGE[3:0]
Programming Information
LBM[3:0]
LBS[3:0]
Symbol
Symbol
Symbol
Symbol
Symbol
Symbol
LBI[3:0]
-
-
-
-
-
LBDC.7-0
LBGS.7-4
LBGS.3-0
LBGE.7-4
LBGE.3-0
Position
Position
Position
Position
Position
Position
LBM.7-4
LBM.3-0
LBS.7-4
LBS.3-0
LBI.7-4
LBI.3-0
Default
Default
Default
Default
Default
Default
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
00H
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.
1 = Reserved.
0 = Normal operation (Default). Or loopback deactivation code detected.
1 = Loopback activation code detected.
0 = Normal operation.
1 = Reserved.
0 = LBI interrupt is not allowed (Default)
1 = LBI interrupt is allowed.
0 = Normal operation.
1 = Reserved.
0 = (Default). Or after a read of e-LBS operation.
1 = Any transition on e-LBSn. (Corresponding e-LBMn and bit LBDE in e-LBCF are both set to ‘1’.)
0 = Normal operation.
1 = Reserved.
0 = Activate Code Generator is selected in Transmitter n. (Default)
1 = Deactivate Code Generator is selected in Transmitter n.
0 = Normal operation.
1 = Reserved.
0 = Activate/Deactivate Code Generator for inband loopback is disabled in Transmitter n. (Default)
1 = Activate/Deactivate Code Generator for inband loopback is enabled in Transmitter n.
(1)(2)
(R/W, Expanded Address = 0AH)
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QUAD T1/E1 SHORT HAUL LINE INTERFACE UNIT
Description
Description
Description
Description
Description
Description
September 22, 2005