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Rainbow Electronics DS21458 User Manual

Page 114

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DS21455/DS21458 Quad T1/E1/J1 Transceivers

114 of 270


Register Name:

RCBR3

Register Description:

Receive Channel Blocking Register 3

Register Address:

8Ah


Bit

# 7 6 5 4 3 2 1 0

Name CH24 CH23 CH22 CH21 CH20 CH19 CH18 CH17
Default

0 0 0 0 0 0 0 0


Bits 0 to 7/Receive Channels 17 to 24 Channel Blocking Control Bits (CH17 to CH24).

0 = force the RCHBLK pin to remain low during this channel time
1 = force the RCHBLK pin high during this channel time



Register Name:

RCBR4

Register Description:

Receive Channel Blocking Register 4

Register Address:

8Bh


Bit

# 7 6 5 4 3 2 1 0

Name CH32 CH31 CH30 CH29 CH28 CH27 CH26 CH25
Default

0 0 0 0 0 0 0 0


Bits 0 to 7/Receive Channels 25 to 32 Channel Blocking Control Bits (CH25 to CH32).

0 = force the RCHBLK pin to remain low during this channel time
1 = force the RCHBLK pin high during this channel time



Register Name:

TCBR1

Register Description:

Transmit Channel Blocking Register 1

Register Address:

8Ch


Bit

# 7 6 5 4 3 2 1 0

Name CH8 CH7 CH6 CH5 CH4 CH3 CH2 CH1
Default

0 0 0 0 0 0 0 0


Bits 0 to 7/Transmit Channels 1 to 8 Channel Blocking Control Bits (CH1 to CH8).

0 = force the TCHBLK pin to remain low during this channel time
1 = force the TCHBLK pin high during this channel time



Register Name:

TCBR2

Register Description:

Transmit Channel Blocking Register 2

Register Address:

8Dh


Bit

# 7 6 5 4 3 2 1 0

Name CH16 CH15 CH14 CH13 CH12 CH11 CH10 CH9
Default

0 0 0 0 0 0 0 0


Bits 0 to 7/Transmit Channels 9 to 16 Channel Blocking Control Bits (CH9 to CH16).

0 = force the TCHBLK pin to remain low during this channel time
1 = force the TCHBLK pin high during this channel time