參數(shù)資料
型號(hào): MPC8540PXAPDB
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 833 MHz, MICROPROCESSOR, PBGA783
封裝: 29 X 29 MM, 3.75 MM HEIGHT, 1 MM PITCH, FLIP CHIP, PLASTIC, BGA-783
文件頁(yè)數(shù): 32/104頁(yè)
文件大小: 2133K
代理商: MPC8540PXAPDB
MPC8540 Integrated Processor Hardware Specifications, Rev. 3.1
Freescale Semiconductor
33
8.3 10/100 Ethernet Controller (10/100 Mbps)—MII Electrical
Characteristics
The electrical characteristics specified here apply to the MII (media independent interface) signals except MDIO
(management data input/output) and MDC (management data clock). The MII interface can be operated at 3.3 or 2.5
V. Whether the MII interface is operated at 3.3 or 2.5 V, the timing is compliant with the IEEE 802.3 standard. The
electrical characteristics for MDIO and MDC are specified in Section 2.1.2, “Recommended Operating Conditions.”
8.3.1 MII DC Electrical Characteristics
All MII drivers and receivers comply with the DC parametric attributes specified in Table 29. The potential applied
to the input of a MII receiver may exceed the potential of the receiver’s power supply (that is, a MII driver powered
from a 3.6-V supply driving VOH into a MII receiver powered from a 2.5-V supply). Tolerance for dissimilar MII
driver and receiver supply potentials is implicit in these specifications.
8.3.2 MII AC Electrical Specifications
This section describes the MII transmit and receive AC specifications.
8.3.2.1 MII Transmit AC Timing Specifications
Table 30 provides the MII transmit AC timing specifications.
Table 29. MII DC Electrical Characteristics
Parameter
Symbol
Min
Max
Unit
Supply voltage 3.3 V
OVDD
3.13
3.47
V
Output high voltage
(OVDD = Min, IOH = –4.0 mA)
VOH
2.40
OVDD + 0.3
V
Output low voltage
(OVDD = Min, IOL = 4.0 mA)
VOL
GND
0.50
V
Input high voltage
VIH
1.70
V
Input low voltage
VIL
–0.3
0.90
V
Input high current
(VIN= OVDD
1)
IIH
40
A
Input low current
(VIN= GND
1)
IIL
–600
A
Note:
1.Note that the symbol VIN, in this case, represents the OVIN symbol referenced in Table 1 and Table 2.
Table 30. MII Transmit AC Timing Specifications
At recommended operating conditions with OVDD of 3.3 V ± 5%.
Parameter/Condition
Symbol 1
Min
Typ
Max
Unit
Input low voltage
VIL
0.7
V
Input high voltage
VIH
1.9
V
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