Rainbow Electronics DS26519 - Manual (Page 211)

DS26519 16-Port T1/E1/J1 Transceiver
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Register Name: RCBR1, RCBR2, RCBR3, RCBR4
Register Description: Receive Channel Blocking Registers 1 to 4
Register Address: 0C4h, 0C5h, 0C6h, 0C7h + (200h x (n - 1)) + (2000h x [(n - 1) / 8]): where n = 1 to 16
(MSB)
(LSB)
Bit # 7 6 5 4 3 2 1 0
Name CH8 CH7 CH6 CH5 CH4 CH3 CH2 CH1 RCBR1
CH16 CH15 CH14 CH13 CH12 CH11 CH10 CH9 RCBR2
CH24 CH23 CH22 CH21 CH20 CH19 CH18 CH17 RCBR3
CH32 CH31 CH30 CH29 CH28 CH27 CH26
CH25
(F-bit)
RCBR4 (E1
Mode Only)*
Bits 7 to 0: Channel Blocking Control Bits for Receive Channels 1 to 32 (CH[1:32])
0 = Force the RCHBLKn pin to remain low during this channel time.
1 = Force the RCHBLKn pin high during this channel time.
*Note that RCBR4 has two functions:
When 2.048MHz backplane mode is selected, this register allows the user to enable the channel blocking
signal for any of the 32 possible backplane channels.
When 1.544MHz backplane mode is selected, the LSB of this register determines whether or not the
RCHBLKn signal will pulse high during the F-bit time. In this mode RCBR4.1 to RCBR4.7 should be set to
0.
RCBR4.0 = 0, do not pulse RCHBLKn during the F-bit.
RCBR4.0 = 1, pulse RCHBLKn during the F-bit.
Register Name: RSI1, RSI2, RSI3, RSI4
Register Description: Receive-Signaling Reinsertion Enable Registers 1 to 4
Register Address: 0C8h, 0C9h, 0CAh, 0CBh + (200h x (n - 1)) + (2000h x [(n - 1) / 8]): where n = 1 to 16
(MSB)
(LSB)
Bit # 7 6 5 4 3 2 1 0
Name CH8 CH7 CH6 CH5 CH4 CH3 CH2 CH1 RSI1
CH16 CH15 CH14 CH13 CH12 CH11 CH10 CH9 RSI2
CH24 CH23 CH22 CH21 CH20 CH19 CH18 CH17 RSI3
CH32 CH31 CH30 CH29 CH28 CH27 CH26 CH25
RSI4 (E1
Mode Only)
Setting any of the CH[1:24] bits in the RSI1 through RSI4 registers will cause signaling data to be reinserted for the
associated channel. RSI4 is used for 2.048MHz backplane operation.