RX62Nグループ、RX621グループ
5. Electrical Characteristics
Tck
90%
Tckr
50%
10%
REF50CK
Tckf
Tco
Tf
Tsu
Thd
Tr
90%
50%
Signal
transitions
Signal
transitions
Signal
transitions
RMII_xxxx *1
Signal
Signal
10%
Note1. RMII_TXD_EN、RMII_TXD1、RMII_TXD0、RMII_CRS_DV、RMII_RXD1、RMII_RXD0、RMII_RX_ER
Figure 5.44 REF50CK and RMII Signal Timing
Tck
REF50CK
Tco
RMII_TXD_EN
Tco
RMII_TXD1
RMII_TXD0
Preamble
SFD
DATA
CRC
Figure 5.45 RMII Transmission Timing
REF50CK
Tsu
Thd
RMII_CRS_DV
Thd
Tsu
Preamble
RMII_RXD1
RMII_RXD0
DATA
CRC
SFD
RMII_RX_ER
L
Figure 5.46 RMII Reception Timing (Normal Operation)
R01UH0033JJ0110 Rev.1.10
2010.12.24
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