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Bit
Bit Name
5
TE
4
3
ILB
2
1
DM
0
PRM
Note: Bits other than TE and RE should be rewritten while both transmission and reception are
disabled (TE = 0 and also RE =0).
Initial
Value
R/W
0
R/W
0
R
0
R/W
0
R
0
R/W
0
R/W
Section 20 Ethernet Controller (EtherC)
Description
Transmission Enable
0: Transmit function is disabled
1: Transmit function is enabled
If this bit is changed from enabling to disabling while a
frame is being transmitted, the transmit function
remains enabled until transmission of the frame is
completed.
Reserved
This bit is always read as 0. The initial value should
not be changed.
Internal Loop Back Mode
Specifies loopback mode in the EtherC.
0: Normal data transmission/reception is performed.
1: When DM = 1, data loopback is performed inside
the MAC in the EtherC.
Reserved
This bit is always read as 0. The initial value should
not be changed.
Duplex Mode
Specifies the EtherC transfer method.
0: Half-duplex transfer is specified
1: Full-duplex transfer is specified
Promiscuous Mode
Setting this bit enables all Ethernet frames to be
received. All Ethernet frames means all receivable
frames, irrespective of differences in or
presence/absence of the destination address,
broadcast address, multicast bit, etc.
0: EtherC performs normal operation
1: EtherC performs promiscuous mode operation
Rev. 1.00 Mar. 12, 2008 Page 763 of 1178
REJ09B0403-0100
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