
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.