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SA9101

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ADR 1

SA9101 Configuration

Bit

Description

Name

CR1B0

Send AIS Towards Remote End

Setting of this bit causes transmitting AIS towards the remote

end. The test data-outputs are not affected.

CR1B1

Select Interface Mode

Switches operation mode on DRO and DXI.

1 = 2 Mbits/s

0 = 4 Mbits/s

CR1B2

Enable optical Interface

If set to one, OPIN is enabled instead of dual rail ports.

CR1B3

Activate CRC4

A “1” activates CRC4-operation

CR1B4

Select counter mode

Only two channels per frame are counted if set to “1”.

CR1B5

Enable Sn-bit Stack

In CRC-mode, the transmit and receive Sn bit stacks can be

used instead of the registers for transmit and receive service

word. Transmitting from Sn-Bit stack is disabled if one of the

timeslot 0 transparent modes is enabled.

CR1B6

Not used (fixed 1)

CR1B7

For Re-synchronisation of CRC4 Multiframe

ADR 2

Channel Parity Check

Bit

Description

Name

CR2B[0-4]

0-4

Selects channel

CR2B5

A “1” disables parity-check of selected channel

CR2B6

Not used

CR2B7

Extended Mode Register access enabled

Allows access to the Extended Control Registers CX1 to CX9

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