Rainbow Electronics DS21458 - Manual (Page 180)

DS21455/DS21458 Quad T1/E1/J1 Transceivers
180 of 270
Register Name:
IBCC
Register Description: In-Band Code Control Register
Register Address: B6h
Bit
# 7 6 5 4 3 2 1 0
Name TC1 TC0 RUP2 RUP1 RUP0 RDN2 RDN1 RDN0
Default
0 0 0 0 0 0 0 0
Bits 0 to 2/Receive-Down Code Length Definition Bits (RDN0 to RDN2).
RDN2 RDN1 RDN0 LENGTH SELECTED (Bits)
0 0 0 1
0 0 1 2
0 1 0 3
0 1 1 4
1 0 0 5
1 0 1 6
1 1 0 7
1 1 1 8/16
Bits 3 to 5/Receive-Up Code Length Definition Bits (RUP0 to RUP2).
RUP2 RUP1 RUP0 LENGTH SELECTED (Bits)
0 0 0 1
0 0 1 2
0 1 0 3
0 1 1 4
1 0 0 5
1 0 1 6
1 1 0 7
1 1 1 8/16
Bits 6 to 7/Transmit Code Length Definition Bits (TC0 to TC1).
TC1 TC0 LENGTH SELECTED (Bits)
0 0 5
0 1 6/3
1 0 7
1 1 16/8/4/2/1