r5s77631ay266bgv Renesas Electronics Corporation., r5s77631ay266bgv Datasheet - Page 1054

• Manufacturer Part Number: r5s77631ay266bgv
• Description: Renesas 32-bit Risc Microcomputer Superhtm Risc Engine Family Sh-4a Series
• Manufacturer: Renesas Electronics Corporation.

Section 23 Gigabit Ethernet Controller (GETHER)
23.5.3
Each RMII frame transmission/reception timing is shown in figures 23.29 to 23.31.
Rev. 1.00 Oct. 01, 2007 Page 988 of 1956
REJ09B0256-0100
RMII_CRS_DV
RMII_CRS_DV
RMII_TX_EN
RMII_TXD1
RMII_TXD0
RMII_RXD1
RMII_RXD0
RMII_RXD1
RMII_RXD0
REF50CK
REF50CK
Figure 23.30 RMII Fame Receive Timing (100-Mbps Reception with Illegal Carrier
REF50CK
Figure 23.31 RMII Fame Transmit Timing (Normal 100-Mbps Transmission)
RMII Frame Transmission/Reception Timing
Figure 23.29 RMII Fame Receive Timing (Normal 100-Mbps Reception)
0
1
0
0
0
0
0
1
0
0
0
0
False Carrier detected
0
1
0
0
0
0
/J/
0
1
Preamble
0
0
0
0
0
1
1
0
0
0
/K/
0
1
1
0
0
0
0
1
1
1
0
0
Preamble
0
1
1
1
0
0
0
1
1
0
0
1
Detected)
0
1
1
1
0
0
0
1
1
1
0
0
SFD
SFD
0
1
1
0
0
1
1
1
1
0
1
1
A
A
A
A
1
0
B
B
B
0
B
1
C
C
C
C
1
0
D
D
D
D
1
0
E
E
E
E
1
0
Data
Data
nibble boundary
F
F
F
1
0
F
G
G
G
G
H
H
H
H
I
I
I
I
0
0
J
J
J
J
0
0
0
0