Rainbow Electronics DS21458 - Manual (Page 181)

DS21455/DS21458 Quad T1/E1/J1 Transceivers
181 of 270
Register Name:
TCD1
Register Description: Transmit Code Definition Register 1
Register Address: B7h
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/Transmit Code Definition Bit 0 (C0). A “don’t care” if a 5-, 6-, or 7-bit length is selected.
Bit 1/Transmit Code Definition Bit 1 (C1). A “don’t care” if a 5-bit or 6-bit length is selected.
Bit 2/Transmit Code Definition Bit 2 (C2). A “don’t care” if a 5-bit length is selected.
Bit 3/Transmit Code Definition Bit 3 (C3).
Bit 4/Transmit Code Definition Bit 4 (C4).
Bit 5/Transmit Code Definition Bit 5 (C5).
Bit 6/Transmit Code Definition Bit 6 (C6).
Bit 7/Transmit Code Definition Bit 7 (C7). First bit of the repeating pattern.
Register Name:
TCD2
Register Description: Transmit Code Definition Register 2
Register Address: B8h
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
Note: Least significant byte of 16-bit codes.
Bit 0/Transmit Code Definition Bit 0 (C0). A “don’t care” if a 5-, 6-, or 7-bit length is selected.
Bit 1/Transmit Code Definition Bit 1 (C1). A “don’t care” if a 5-, 6-, or 7-bit length is selected.
Bit 2/Transmit Code Definition Bit 2 (C2). A “don’t care” if a 5-, 6-, or 7-bit length is selected.
Bit 3/Transmit Code Definition Bit 3 (C3). A “don’t care” if a 5-, 6-, or 7-bit length is selected.
Bit 4/Transmit Code Definition Bit 4 (C4). A “don’t care” if a 5-, 6-, or 7-bit length is selected.
Bit 5/Transmit Code Definition Bit 5 (C5). A “don’t care” if a 5-, 6-, or 7-bit length is selected.
Bit 6/Transmit Code Definition Bit 6 (C6). A “don’t care” if a 5-, 6-, or 7-bit length is selected.
Bit 7/Transmit Code Definition Bit 7 (C7). A “don’t care” if a 5-, 6-, or 7-bit length is selected.