T-8110L AGERE [Agere Systems], T-8110L Datasheet - Page 49

• Manufacturer Part Number: T-8110L
• Manufacturer: AGERE [Agere Systems]

February 2004
Agere Systems Inc.
6 Clock Architecture
6.1 Clock Input Control Registers
6.1.8 LREF Input Select Registers
The LREF input select register is used in conjunction with the main input selector (0x00200) and provides the
selection control among the eight LREF inputs when the main selection is set for either individual or paired LREFs.
The LREF inversion select register allows programmable inversion for each LREF input. Please refer to
Section 6.4.1.3 on page 60 for further details.
Table 41. LREF Input/Inversion Select Registers
Address
0x0020C LREF Inversion
0x00208 LREF Input
Byte
Select
Select
Name
(continued)
Bit(s) Mnemonic
7:0
7
6
5
4
3
2
1
0
LRISR
IR7SB
IR6SB
IR5SB
IR4SB
IR3SB
IR2SB
IR1SB
IR0SB
(continued)
0000 0000
0000 0001
0000 0010
0000 0100
0000 1000
0001 0000
0010 0000
0100 0000
1000 0000
0001 0001
0010 0010
0100 0100
1000 1000
Value
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Ambassador T8110L H.100/H.110 Switch
Select LREF0 (default).
Select LREF0.
Select LREF1.
Select LREF2.
Select LREF3.
Select LREF4.
Select LREF5.
Select LREF6.
Select LREF7.
Select paired, clock = LREF0, frame = LREF4.
Select paired, clock = LREF1, frame = LREF5.
Select paired, clock = LREF2, frame = LREF6.
Select paired, clock = LREF3, frame = LREF7.
Don't invert LREF7 (default).
Invert LREF7.
Don't invert LREF6 (default).
Invert LREF6.
Don't invert LREF5 (default).
Invert LREF5.
Don't invert LREF4 (default).
Invert LREF4.
Don't invert LREF3 (default).
Invert LREF3.
Don't invert LREF2 (default).
Invert LREF2.
Don't invert LREF1 (default).
Invert LREF1.
Don't invert LREF0 (default).
Invert LREF0.
Function
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