82V2044BB IDT, Integrated Device Technology Inc, 82V2044BB Datasheet - Page 37

• 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-CODV: Code Violation Detect Enable/Disable Register (R/W, Expanded Address = 06H)
e-EQUA: Receive Equalizer Enable/Disable Register (R/W, Expanded Address = 07H)
e-LBCF: Inband Loopback Configuration Register
1.
e-LBAC: Inband Loopback Activation Code Register
1.
2.
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,
CODV[3:0]
EQUA[3:0]
IDT82V2044
the register value should be 11000110. Here b7 is repeated in b2; b6 is repeated in b1; b5 is repeated in b0.
LBDL[1:0]
LBAC[7:0]
LBAL[1:0]
Programming Information
Symbol
Symbol
Symbol
Symbol
LBDE
ALBE
-
-
-
CODV.7-4
CODV.3-0
EQUA.7-4
EQUA.3-0
LBCF.7-6
LBCF.3-2
LBCF.1-0
LBAC.7-0
Position
Position
Position
Position
LBCF.5
LBCF.4
Default
Default
Default
0000
0000
0000
0000
Default
00
00
00
0
0
00H
0 = Normal operation.
1 = Reserved.
0 = Code Violation Detect enable for B8ZS/HDB3 decoder in single rail mode. (Default)
1 = Code Violation Detect disabled.
0 = Normal operation.
1 = Reserved.
0 = Normal operation. (Default)
1 = Equalizer in Receiver n is enabled, which can improve the receive performance when transmission length is more than
200 m.
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.
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)
(R/W, Expanded Address = 09H)
37
QUAD T1/E1 SHORT HAUL LINE INTERFACE UNIT
Description
Description
Description
Description
September 22, 2005