SH7763 Datasheet, PDF (878/2026 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC Engine Family SH-4A Series

Section 23 Gigabit Ethernet Controller (GETHER)
Initial
Bit
Bit Name Value R/W Description
6
RE
0
R/W Reception Enable
If a switch is made from receiving function enabled (RE
= 1) to disabled (RE = 0) while a frame is being
received, the receiving function will be enabled until
reception of the corresponding frame is completed.
0: Receiving function is disabled
1: Receiving function is enabled
5
TE
0
R/W Transmission Enable
If a switch is made from transmitting function enabled
(TE = 1) to disabled (TE = 0) while a frame is being
transmitted, the transmitting function will be enabled
until transmission of the corresponding frame is
completed.
0: Transmitting function is disabled
1: Transmitting function is enabled
4

0
R
Reserved
This bit is always read as 0. The write value should
always be 0.
3
ILB
0
R/W Internal Loop Back Mode
Specifies loopback mode in the GETHER.
0: Normal data transmission/reception is performed
1: Data loopback is performed inside the E-MAC in the
GETHER when DM = 1
2

0
R
Reserved
This bit is always read as 0. The write value should
always be 0.
1
DM
0
R/W Duplex Mode
Specifies the GETHER transfer method.
0: Half-duplex transfer is specified
1: Full-duplex transfer is specified
Rev. 1.00 Oct. 01, 2007 Page 812 of 1956
REJ09B0256-0100