BT8375 CONEXANT [Conexant Systems, Inc], BT8375 Datasheet - Page 164

• Manufacturer Part Number: BT8375
• Description: single chip transceivers for T1/E1 and Integrated Service Digital Network (ISDN) primary rate interfaces
• Manufacturer: CONEXANT [Conexant Systems, Inc]

3.7 Receive LIU Registers
PRE_EQ[7:0]
COEFF[7:0]
GAIN[5:0]
3-46
02A—Pre_Equalizer (PRE_EQ)
030–037—LMS Adjusted Equalizer Coefficient Status (COEFF)
038–03C—Equalizer Gain Thresholds (GAIN)
COEFF[7]
FORCE
—
7
7
7
Internally set to default value during RESET or RST_LIU. PRE_EQ is an analog filter that
resides after the VGA and which operates independently of the adaptive digital equalizer.
PRE_EQ compensates for distortion introduced by long and extended long-haul lines. To
configure this register, please see Table 3-9, Receive LIU Register Settings versus Application.
8-Bit Adjusted Coefficient.
Default loaded from ROM after RESET or RST_LIU.
COEFF[6]
ON
—
6
6
6
COEFF[5]
GAIN[5]
Force
5
5
5
0
1
1
COEFF[4]
GAIN[4]
ON
X
4
1
0
4
4
Conexant
COEFF[3]
GAIN[3]
3
3
3
Fully Integrated T1/E1 Framer and Line Interface
VTHRESH[5:0]
Forced Off
Forced On
COEFF[2]
GAIN[2]
Auto
2
2
2
COEFF[1]
GAIN[1]
Bt8370/8375/8376
1
1
1
N8370DSE
COEFF[0]
GAIN[0]
0
0
0