MT9072AB datasheet(125/275 Pages) ZARLINK

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MT9072

Data Sheet

125

Zarlink Semiconductor Inc.

Table 78 - Receive Loop Deactivate code Match Register (R/W Address YF0)

Bit

Name

Functional Description

15-10

not used

9-8

RXLACL

1-0

(00)

Receive Loop Activate Code Length. These 2 bits define the length of the receive 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 RXLACM7-0. For

instance if the code 1011 is desired the RXLACM has to be set to 10111011 and the RXLACL to

11. In case of the 3 bit code the 2 most significant bits of RXLACM are ignored.

7-0

RXLACM

7-0

(0000

0001)

Receive Loop Activate Code Match.This byte specifies the match code for the receive

loopback activate code. A maskable interrupt can be generated if the loopback activate code

message is received. This byte is compared to RXLAC.

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

Table 77 - Receive Loop Activate Code Match Register(Y0F) (T1)

Bit

Name

Functional Description

15-10

not used

9-8

RXLDCL

1-0

(00)

Receive Loop Deactivate Code Length. These 2 bits define the length of the receive 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 RXLACM7-0. For

instance if the code 1011 is desired the RXLACM has to be set to 10111011 and the RXLACL to

11. In case of the 3 bit code the 2 most significant bits of RXLACM are ignored.

7-0

RXLDCM

7-0

(0000

0001)

Receive Loop Deactivate Code Match.This byte specifies the match code for the receive

loopback activate code. A maskable interrupt can be generated if the loopback activate code

message is received. This byte is compared to RXLAC.

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

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