mpc8544e Freescale Semiconductor, Inc, mpc8544e Datasheet - Page 42

• Manufacturer Part Number: mpc8544e
• Description: Mpc8544e Powerquicc Iii Integrated Processor
• Manufacturer: Freescale Semiconductor, Inc

Ethernet Management Interface Electrical Characteristics
9
The electrical characteristics specified here apply to MII management interface signals MDIO
(management data input/output) and MDC (management data clock). The electrical characteristics for
GMII, RGMII, RMII, TBI, and RTBI are specified in
(eTSEC), MII Management.”
9.1
The MDC and MDIO are defined to operate at a supply voltage of 3.3 V. The DC electrical characteristics
for MDIO and MDC are provided in
9.2
Table 41
At recommended operating conditions with OV
42
MDC frequency
MDC period
MDC clock pulse width high
MDC to MDIO delay
MDIO to MDC setup time
MDIO to MDC hold time
MDC rise time
Supply voltage (3.3 V)
Output high voltage (OV
Output low voltage (OV
Input high voltage
Input low voltage
Input high current (OV
Input low current (OV
Note:
1. The symbol V
Ethernet Management Interface Electrical
Characteristics
Parameter/Condition
provides the MII management AC timing specifications.
MII Management DC Electrical Characteristics
MII Management AC Electrical Specifications
IN
, in this case, represents the OV
MPC8544E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 4
DD
DD
DD
DD
Parameter
= Max, V
= Max, V
= Min, I
= Min, I
Table 40. MII Management DC Electrical Characteristics
Table 41. MII Management AC Timing Specifications
IN
OL
IN
OH
= 0.5 V)
= 1.0 mA)
= 2.1 V)
= –1.0 mA)
Preliminary—Subject to Change Without Notice
DD
Symbol
t
t
t
MDKHDX
MDDVKH
MDDXKH
is 3.3 V ± 5%.
Table
t
t
f
t
MDCH
MDCR
MDC
MDC
Freescale Confidential Proprietary
IN
1
40.
symbol referenced in
(16 × t
Min
plb_clk
32
—
—
—
5
0
Symbol
“Section 8, “Enhanced Three-Speed Ethernet
OV
V
V
V
V
I
I
) – 3
OH
IH
OL
IL
IH
IL
DD
Table 1
Typ
400
2.5
—
—
—
—
—
3.135
GND
–600
2.10
1.95
Min
—
—
and
Table
(16 × t
2.
Max
plb_clk
3.465
10
—
—
—
—
—
Max
3.60
0.50
0.90
40
—
—
) + 3
Freescale Semiconductor
Unit
MHz
Unit
μA
μA
ns
ns
ns
ns
ns
ns
V
V
V
V
V
Notes
Notes
3, 4
—
—
—
—
—
—
—
—
—
—
—
1
2