HD6417618 RENESAS [Renesas Technology Corp], HD6417618 Datasheet - Page 266

• Manufacturer Part Number: HD6417618
• Description: 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7618 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 11 Ethernet Controller (EtherC)
Rev. 6.00 Jun. 12, 2007 Page 234 of 610
REJ09B0131-0600
Bit
5
4
3
2
1
Bit Name
TE

ILB
ELB
DM
Initial
Value
0
0
0
0
0
R/W
R/W
R
R/W
R/W
R/W
Description
Transmission Enable
If a frame is being transmitted when this bit is
switched from transmit function enabled (TE = 1) to
disabled (TE = 0), the transmit function will be enabled
until transmission of the corresponding frame is
completed.
0: Transmit function is disabled
1: Transmit function is enabled
Reserved
This bit is always read as 0. The write value should
always be 0.
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
External Loop Back Mode
This bit value is output directly to this LSI’s general-
purpose external output pin (EXOUT). This bit is used
for loopback mode directives, etc., in the LSI, using
the EXOUT pin. In order for LSI loopback to be
implemented using this function, the LSI must have a
pin corresponding to the EXOUT pin.
0: Low-level output from the EXOUT pin
1: High-level output from the EXOUT pin
Duplex Mode
Specifies the EtherC transfer method.
0: Half-duplex transfer is specified
1: Full-duplex transfer is specified
the MAC in the EtherC.