Rainbow Electronics DS26519 - Manual (Page 186)

DS26519 16-Port T1/E1/J1 Transceiver
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Register Name: T1RSCC (T1 Mode Only)
Register Description: In-Band Receive Spare Control Register
Register Address: 089h + (200h x (n - 1)) + (2000h x [(n - 1) / 8]): where n = 1 to 16
Bit
# 7 6 5 4 3 2 1 0
Name — — — — — RSC2 RSC1 RSC0
Default 0 0 0 0 0 0 0 0
Bits 2 to 0: Receive Spare Code Length Definition Bits (RSC[2:0])
RSC2 RSC1 RSC0 LENGTH SELECTED
0 0 0 1 bits
0 0 1 2 bits
0 1 0 3 bits
0 1 1 4 bits
1 0 0 5 bits
1 0 1 6 bits
1 1 0 7 bits
1 1 1 8 : 16 bits
Register Name: RXPC
Register Description: Receive Expansion Port Control Register
Register Address: 08Ah + (200h x (n - 1)) + (2000h x [(n - 1) / 8]): where n = 1 to 16
Bit
# 7 6 5 4 3 2 1 0
Name — — — — — RBPDIR RBPFUS RBPEN
— — — — — RBPDIR — RBPEN
Default 0 0 0 0 0 0 0 0
Bit 2: Receive BERT Port Direction Control (RBPDIR)
0 = Normal (line) operation. Rx BERT port receives data from the receive framer.
1 = System (backplane) operation. Rx BERT port receives data from the transmit path. The transmit path
enters the receive BERT on the line side of the elastic store (if enabled).
Bit 1: Receive BERT Port Framed/Unframed Select (RBPFUS) (T1 Mode Only)
0 = The DS26519’s receive BERT will not clock data from the F-bit position (framed).
1 = The DS26519’s receive BERT will clock data from the F-bit position (unframed).
Bit 0: Receive BERT Port Enable (RBPEN)
0 = Receive BERT port is not active.
1 = Receive BERT port is active.