RTL8201N
Datasheet
9.2.6. MDC/MDIO Timing
Table 38. MDC/MDIO Timing
Symbol Description
Minimum
160
Maximum
Unit
ns
t1
t2
t3
t4
t5
t6
MDC high pulse width
MDC low pulse width
MDC period
-
160
-
ns
400
-
-
ns
MDIO setup to MDC rising edge
10
ns
MDIO hold time from MDC rising edge
MDIO valid from MDC rising edge
10
0
-
ns
300
ns
t3
V
IH(min)
MDC
V
IL(max)
t 5
t4
t1
t2
MDIO
sourced by
STA
V
IH(min)
V
IL(max)
t6
MDIO
sourced by
RTL8201CN
V
V
IH(min)
IL(max)
Figure 13. MDC/MDIO Timing
Transmission Without Collision
Figure 14 shows an example of a packet transfer from MAC to PHY.
Figure 14. MDC/MDIO MAC to PHY Transmission Without Collision
Single-Chip/Port 10/100 Fast Ethernet PHYceiver
With Auto MDIX
31
Rev. 1.2
ETC [ ETC ]
