Datasheet

R01DS0098EJ0180 Rev.1.80 Page 176 of 208
May 13, 2014
RX63N Group, RX631 Group 5. Electrical Characteristics
Figure 5.47 RIIC Bus Interface Input/Output Timing and Simple IIC Bus Interface Input/Output
Timing
Figure 5.48 REF50CK and RMII Signal Timing
Figure 5.49 RMII Transmission Timing
SDA0 to SDA3
SCL0 to SCL3
V
IH
V
IL
t
STAH
t
SCLH
t
SCLL
P *
1
S *
1
t
Sf
t
Sr
t
SCL
t
SDAH
t
SDAS
t
STAS
t
SP
t
STOS
P *
1
t
BUF
Note 1. S, P, and Sr indicate the following conditions.
S: Start condition
P: Stop condition
Sr: Restart condition
Test conditions
V
IH
= VCC × 0.7, V
IL
= VCC × 0.3
Sr *
1
Tck
REF50CK
Tckr
Tckf
Tco Tsu Thd
SignalSignal
Signal
transitions
Signal
transitions
Signal
transitions
TfTr
90%
50%
10%
90%
50%
10%
RMII_xxxx *
1
Note1. RMII_TXD_EN, RMII_TXD1, RMII_TXD0, RMII_CRS_DV, RMII_RXD1, RMII_RXD0, RMII_RX_ER
Tck
Tco
DATA
Tco
SFD CRC
RMII_TXD1
RMII_TXD0
RMII_TXD_EN
REF50CK
Preamble