XMC4500
XMC4000 Family
Electrical Parameters
3.3.12.4 ETH RMII Parameters
In the following, the parameters of the RMII (Reduced Media Independent Interface) are
described.
Table 60
ETH RMII Signal Timing Parameters
Symbol
Parameter
Values
Min. Typ. Max.
Unit Note /
Test Condit
ion
ETH_RMII_REF_CL clock period
t13
SR 20
–
–
ns
CL = 25 pF;
50 ppm
ETH_RMII_REF_CL clock high time t14
ETH_RMII_REF_CL clock low time t15
SR 7
SR 7
SR 4
–
–
–
13
13
–
ns
ns
ns
CL = 25 pF
ETH_RMII_RXD[1:0],
t16
t17
t18
ETH_RMII_CRS setup time
ETH_RMII_RXD[1:0],
SR 2
CC 4
–
–
–
ns
ns
ETH_RMII_CRS hold time
ETH_RMII_TXD[1:0],
15
ETH_RMII_TXEN data valid
t13
t15
t14
ETH_RMII_REF_CL
ETH_RMII_REF_CL
t16
t17
ETH_RMII_RXD[1:0]
ETH_RMII _CRS
Valid Data
(sourced by PHY )
ETH_RMII_REF_CL
t18
Valid Data
ETH_RMII_TXD[1:0]
ETH_RMII_TXEN
Valid Data
(sourced by STA )
ETH_Timing-RMII.vsd
Figure 41
ETH RMII Signal Timing
Data Sheet
106
V1.0, 2013-01
Subject to Agreement on the Use of Product Information
INFINEON [ Infineon ]
