SH7763 Datasheet, PDF (980/2026 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC Engine Family SH-4A Series

Section 23 Gigabit Ethernet Controller (GETHER)
Bit
Bit Name
16
RFOF
15 to 11 
10
DLC
9
CD
8
TRO
7
RMAF
6
CEEF
Initial
Value
0
All 0
0
0
0
0
0
R/W Description
R/W Receive FIFO Overflow
Indicates that the receive FIFO has overflowed during
frame reception.
0: Overflow has not occurred
1: Overflow has occurred
R
Reserved
These bits are always read as 0. The write value should
always be 0.
R/W Detect Loss of Carrier
Indicates that loss of the carrier has been detected
during frame transmission.
0: Loss of carrier has not been detected
1: Loss of carrier has been detected
R/W Delayed Collision Detect
Indicates that a delayed collision has been detected
during frame transmission.
0: Delayed collision has not been detected
1: Delayed collision has been detected
R/W Transmit Retry Over
Indicates that a retry-over condition has occurred
during frame transmission. Total 16 transmission retries
including 15 retries based on the back-off algorithm
have failed after the E-MAC transmission starts.
0: Transmit retry-over condition not detected
1: Transmit retry-over condition detected
R/W Receive Multicast Address Frame
0: Multicast address frame has not been received
1: Multicast address frame has been received
R/W Carrier Extension Error
Indicates that a carrier extension error has occurred
during frame reception in 1-Gigabit/half-duplex transfer.
0: Carrier extension error has not occurred
1: Carrier extension error has occurred
Rev. 1.00 Oct. 01, 2007 Page 914 of 1956
REJ09B0256-0100