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DS33Z41 Quad IMUX Ethernet Mapper
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Register Name:
GL.IMXCN
Register Description:
Inverse MUX Configuration Register
Register Address:
16h
Bit
# 7 6 5 4 3 2 1 0
Name
—
T1E1
RXE
SENDE
L4
L3
L2
L1
Default
0 0 0 0 0 0 0 0
Bit 6: T1E1 Mode (T1E1).
This bit determines if IMUX if for T1 or E1 Mode.
0 = T1 Mode
1 = E1 Mode
Bit 5: Receive Enable (RXE).
If this bit is set to 1, data will be received from the Serial Interface and passed to
the packet processor. If equal to 0, no data will be sent to the packet processor.
Bit 4: SEND Enable (SENDE).
If this bit is set to 1, the data will be transmitted on the Serial Interface. If equal to
0, data is blocked.
Bit 3: Link 4 (L4).
If this bit is set to 1, link number four is participating in the communication. If this bit is equal to
0, the link does not participate.
Bit 2: Link 3 (L3).
If this bit is set to 1, link number three is participating in the communication. If this bit is equal
to 0, the link does not participate.
Bit 1: Link 2 (L2).
If this bit is set to 1, link number two is participating in the communication. If this bit is equal to
0, the link does not participate.
Bit 0: Link 1 (L1).
If this bit is set to 1, link number one is participating in the communication. If this bit is equal to
0, the link does not participate.
Register Name:
GL.IMXC
Register Description:
Inverse MUX Command Register
Register Address:
17h
Bit #
7 6 5 4 3 2 1 0
Name
IMUXC7 IMUXC6 IMUXC5 IMUXC4 IMUXC3 IMUXC2 IMUXC1 IMUXC0
Default
1 1 1 1 1 1 1 1
Bits 0 to 7: Inverse Multiplexing Command (IMUXC[0:7]).
This byte is used to issue IMUX commands.
AVAILABLE USER COMMANDS
VALUE COMMAND
COMMENT
1111 1111b
NOP
No operation to perform.
1000 0010b
Link Start
Establish Link with the distant end. Upon reception of this message,
this distant end begins searching for 3 consecutive sequence
numbers.
The user must send a link start command. The NOP command may be written to this register after the link start
command is written. All values other than those listed above will be ignored.