Rainbow Electronics DS21458 - Manual (Page 184)

DS21455/DS21458 Quad T1/E1/J1 Transceivers
184 of 270
Register Name:
RDNCD2
Register Description: Receive-Down Code Definition Register 2
Register Address: BCh
Bit
# 7 6 5 4 3 2 1 0
Name C7 C6 C5 C4 C3 C2 C1 C0
Default
0 0 0 0 0 0 0 0
Bit 0/Receive-Down Code Definition Bit 0 (C0). A “don’t care” if a 1-bit to 7-bit length is selected.
Bit 1/Receive-Down Code Definition Bit 1 (C1). A “don’t care” if a 1-bit to 7-bit length is selected.
Bit 2/Receive-Down Code Definition Bit 2 (C2). A “don’t care” if a 1-bit to 7-bit length is selected.
Bit 3/Receive-Down Code Definition Bit 3 (C3). A “don’t care” if a 1-bit to 7-bit length is selected.
Bit 4/Receive-Down Code Definition Bit 4 (C4). A “don’t care” if a 1-bit to 7-bit length is selected.
Bit 5/Receive-Down Code Definition Bit 5 (C5). A “don’t care” if a 1-bit to 7-bit length is selected.
Bit 6/Receive-Down Code Definition Bit 6 (C6). A “don’t care” if a 1-bit to 7-bit length is selected.
Bit 7/Receive-Down Code Definition Bit 7 (C7). A “don’t care” if a 1-bit to 7-bit length is selected.
Register Name:
RSCC
Register Description: In-Band Receive Spare Control Register
Register Address: BDh
Bit
# 7 6 5 4 3 2 1 0
Name — — — — — RSC2 RSC1 RSC0
Default 0 0 0 0 0 0 0 0
Bits 0 to 2/Receive Spare Code Length Definition Bits (RSC0 to RSC2).
RSC2 RSC1 RSC0 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
Bit 3/Unused, must be set to zero for proper operation.
Bit 4/Unused, must be set to zero for proper operation.
Bit 5/Unused, must be set to zero for proper operation.
Bit 6/Unused, must be set to zero for proper operation.
Bit 7/Unused, must be set to zero for proper operation.