MT9072AB datasheet(124/275 Pages) ZARLINK

124 / 275 page

MT9072

Data Sheet

124

Zarlink Semiconductor Inc.

Bit

Name

Functional Description

15-10

not used

9-8

TXLACL

1-0

(00)

Transmit Loop Activate Code Length. These 2 bits define the length of the transmit loop up

code.

00-Code length is 5 bits

01-Code length is 6 or 3 bits

10-Code length is 7 bits

11-Code length is 8 or 4 bits

Note: if 3 bit code or 4 bit code is required the bits have to be repeated in TXLDC7-0.

For instance if the code 1011 is desired, the TXLAC has to be set to 10111011 and the length

TXLACL to 11.

7-0

TXLAC7-0

(0000

0001)

Transmit Loop Activate Code. This byte specifies the inband loopup code to be transmitted.

The default values are the T1.403 values for Loop Activate Code.

Table 75 - Transmit Loop Activate Code Register(Y0D) (T1)

Bit

Name

Functional Description

15-10

not used

9-8

TXLDCL

1-0

(01)

Transmit Loop Deactivate Code Length. These 2 bits define the length of the transmit

loop down code.

00-Code length is 5 bits

01-Code length is 6 or 3 bits

10-Code length is 7 bits

11-Code length is 8 or 4 bits

Note if 3 bit code or 4 bit code is required the bits have to be repeated in the TXLDC7-0. For

instance if the code 1011 is desired, the TXLDC has to be set to 10111011 and TxDLCL to 11

7-0

TXLDC7-0

(0000

1001)

Transmit Loop Deactivate Code. This byte specifies the inband loopdown code to be

transmitted. If 001 is to be transmitted as a loopdown code; the register has to programmed

to a value of XX001001and the length (TXLDL has to be 01).The default values are the

T1.403 values for Loop Deactivate Code.

Table 76 - Transmit Loop Deactivate Code Register(Y0E) (T1)

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