ACS8525T Semtech, ACS8525T Datasheet - Page 59

• Manufacturer Part Number: ACS8525T
• Description: Line Card Protection Switch for SONET/SDH Systems
• Manufacturer: Semtech

Address (hex):
Address (hex):
Revision 3.01/August 2005 © Semtech Corp.
ADVANCED COMMUNICATIONS
Register Name
Register Name
Bit No.
Bit No.
Bit 7
[5:0]
Bit 7
[7:2]
7
6
1
0
35
36
cnfg_DPLL2_path
DPLL2_dig_
feedback
Description
Not used.
DPLL2_dig_feedback
Bit to select digital feedback mode for DPLL2.
Not used.
cnfg_differential_inputs
Description
Not used.
SEC2_DIFF_PECL
Configures the SEC2 DIFF input to be compatible
with either 3 V LVDS or 3 V PECL electrical levels.
SEC1_DIFF_PECL
Configures the SEC1 DIFF input to be compatible
with either 3 V LVDS or 3 V PECL electrical levels.
Bit 6
Bit 6
Bit 5
Bit 5
Description
Description
Bit 4
Bit 4
FINAL
Page 59
(R/W) Register to configure the
feedback mode of DPLL2.
(R/W) Configures the differential
inputs to be PECL or LVDS type
inputs.
Bit Value
Bit Value
Bit 3
Bit 3
0
1
0
1
0
1
-
-
-
Value Description
-
DPLL2 in analog feedback mode.
DPLL2 in digital feedback mode.
-
Value Description
-
SEC2 DIFF input LVDS compatible.
SEC2 DIFF input PECL compatible (Default).
SEC1 DIFF input LVDS compatible.
SEC1 DIFF input PECL compatible (Default).
Bit 2
Bit 2
Default Value
Default Value
SEC2_DIFF_
PECL
ACS8525 LC/P
Bit 1
Bit 1
DATASHEET
www.semtech.com
1010 0000
0000 0011
SEC1_DIFF_
PECL
Bit 0
Bit 0