Ethernet Management Interface Electrical Characteristics
Table 42. MII Management DC Electrical Characteristics(LV /TV =3.3 V) (continued)
DD
DD
Parameter
Input low current
Symbol
Min
Max
Unit
Notes
I
–600
—
μA
—
IL
(LV /TV = Max, V = 0.5 V)
DD
DD
IN
Note:
1. EC1_MDC and EC1_MDIO operate on LV
.
DD
2. EC3_MDC & EC3_MDIO and EC5_MDC & EC5_MDIO operate on TV
.
DD
3. Note that the symbol V , in this case, represents the LV and TV symbol referenced in Table 1.
IN
IN
IN
Table 43. MII Management DC Electrical Characteristics (LV /TV =2.5 V)
DD
DD
Parameters
Symbol
LV TV
Min
Max
Unit
Notes
1,2
Supply voltage 2.5 V
Output high voltage
2.37
2.00
2.63
V
V
DD/
DD
V
LV /TV + 0.3
—
OH
DD
DD
(LV /TV = Min, IOH = –1.0 mA)
DD
DD
Output low voltage
(LV /TV = Min, I = 1.0 mA)
V
GND – 0.3
0.40
V
—
—
OL
DD
DD
OL
Input high voltage
Input low voltage
Input high current
V
1.70
–0.3
—
LV /TV + 0.3
V
V
IH
DD
DD
V
I
0.70
—
IL
1, 2,3
10
μA
IH
(V = LV , V = TV )
IN
DD IN
DD
3
Input low current
I
–15
—
μA
IL
(V = GND)
IN
Note:
1
2
3
EC1_MDC and EC1_MDIO operate on LV
EC3_MDC & EC3_MDIO and EC5_MDC & EC5_MDIO operate on TV
.
DD
.
DD
Note that the symbol V , in this case, represents the LV and TV symbols referenced in Table 1.
IN
IN
IN
9.2
MII Management AC Electrical Specifications
Table 44 provides the MII management AC timing specifications.There are three sets of Ethernet
management signals (EC1_MDC and EC1_MDIO, EC3_MDC and EC3_MDIO, EC5_MDC and
EC5_MDIO). These are not explicitly shown in the table or in the figure following.
Table 44. MII Management AC Timing Specifications
At recommended operating conditions with LVDD/TVDD of 3.3 V ± 5% or 2.5 V ± 5%.
1
Parameter/Condition
ECn_MDC frequency
Symbol
Min
Typ
Max
Unit
Notes
f
t
0.9
107.5
32
2.5
—
—
—
—
9.3
1120
—
MHz
ns
2, 3
—
—
5
MDC
MDC
ECn_MDC period
ECn_MDC clock pulse width high
ECn_MDC to ECn_MDIO delay
ECn_MDIO to ECn_MDC setup time
t
ns
MDCH
t
t
10
16*t
ns
MDKHDX
MDDVKH
plb_clk
5
—
ns
—
MPC8572E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 4
Freescale Semiconductor
51
FREESCALE [ Freescale ]
