Datasheet

R01DS0052EJ0140 Rev.1.40 Page 120 of 150
2014.07.16
RX62N Group, RX621 Group 5. Electrical Characteristics
Note 1. RMII_TXD_EN, RMII_TXD1, RMII_TXD0
Note 2. RMII_CRS_DV, RMII_RXD1, RMII_RXD0, RMII_RX_ER
Note 3. The user program must make settings so that this stipulation is satisfied.
Table 5.17
Timing of On-Chip Peripheral Modules (8)
Conditions: VCC = PLLVCC = AVCC = VCC_USB = 2.7 to 3.6 V, VREFH = 2.7 V to AVCC
VSS = PLLVSS = AVSS = VREFL = VSS_USB = 0 V
ICLK = 12.5 to 100 MHz
T
a
= -40 to +85C
Item Symbol Min. Max. Unit Test Conditions
ETHERC(RMII) REF50CK cycle time T
ck
20 — ns Figure 5.44 to Figure
5.47
REF50CK frequency
Typ. 50 MHz
— — 50 + 100ppm MHz
REF50CK duty — 35 65 %
REF50CK rise/fall time T
ckr/ckf
0.5 3.5 ns
RMII_xxxx
*1
output delay time
T
co
2.5 12.5 ns
RMII_xxxx
*2
setup time
T
su
3— ns
RMII_xxxx
*2
hold time
T
hd
1— ns
RMII_xxxx
*1*2
rise/fall time
Tr/Tf 0.5 6 ns
ET_MDIO setup time t
MDIOs
10 — ns Figure 5.48
ET_MDIO hold time t
MDIOh
10 — ns
ET_MDIO output hold time
*3
t
MDIODh
5 — ns Figure 5.49
ET_WOL output delay time t
WOLd
1 20 ns Figure 5.50