XRT86L30
REV. 1.0.1
SINGLE T1/E1/J1 FRAMER/LIU COMBO
TABLE 12: LINE
INTERFACE
C
ONTROL
REGISTER T1 MODE
R
EGISTER 1 - T1/E1 MODE
IT UNCTION
L
INE
I
NTERFACE ONTROL
C
R
EGISTER (LICR)
HEX ADDRESS: 0X0101
B
F
TYPE
D
EFAULT
DESCRIPTION-OPERATION
7
FORCE_LOS
R/W
0
Force Transmit LOS
This bit is used to force LOS to the transmit output.
0 = Disabled
1 = LOS Enabled
6
Reserved
R/W
R/W
0
0
Reserved
5:4 LB[1:0]
Framer Loopback Selection (For LIU Loopback Modes, see the LIU
Configuration Registers)
These two bits are used to select any of the following loop-back modes.
00 = No loopback
01 = Local loopback
10 = Remote Line Loopback
11 = Payload Loopback
3:2 Reserved
R/W
R/W
0
0
Reserved
1
Encode AMI/B8ZS
Encode AMI or B8ZS/HDB3 Line Code Select
Configures the Transmit LIU Interface block to transmit data via the
AMI or B8ZS/HDB3 line codes.
0 = B8ZS for DS1/HDB3 for E1
1 = AMI line code.
0
Decode AMI/B8ZS
R/W
0
Decode AMI or B8ZS/HDB3 Line Code Select
Enables or disables the HDB3 decoder with in the Receive LIU inter-
face block.
0 = Enables the B8ZS/HDB3 decoder
1 = Disables the B8ZS/HDB3 decoder
TABLE 13: GENERAL
P
URPOSE
INPUT/OUTPUT 0 CONTROL
REGISTER
R
EGISTER
IT
2
G
ENERAL
P
URPOSE
I
NPUT/OUTPUT 0 CONTROL
R
EGISTER (GPIOCR)
HEX ADDRESS: 0X0102
B
FUNCTION
TYPE
D
EFAULT
DESCRIPTION-OPERATION
7
GPIO0_3DIR
GPIO0_2DIR
GPIO0_1DIR
R/W
R/W
R/W
0
GPIO0_3 Direction
This bit is used to select pin GPIO0_3 as an input or output.
0 = Input
1 = Output
6
5
0
0
GPIO0_2 Direction
This bit is used to select pin GPIO0_2 as an input or output.
0 = Input
1 = Output
GPIO0_1 Direction
This bit is used to select pin GPIO0_1 as an input or output.
0 = Input
1 = Output
38
EXAR [ EXAR CORPORATION ]
