參數(shù)資料
型號: MPC8379ECVRAGDA
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 266 MHz, MICROPROCESSOR, PBGA689
封裝: 31 X 31 MM, 2.46 MM HEIGHT, 1 MM PITCH, LEAD FREE, PLASTIC, BGA-689
文件頁數(shù): 39/114頁
文件大?。?/td> 1337K
代理商: MPC8379ECVRAGDA
MPC8379E PowerQUICC II Pro Processor Hardware Specifications, Rev. 2
30
Freescale Semiconductor
Ethernet: Enhanced Three-Speed Ethernet (eTSEC)
Figure 14 shows the RMII receive AC timing diagram.
Figure 14. RMII Receive AC Timing Diagram
8.3
Management Interface Electrical Characteristics
The electrical characteristics specified here apply to MII management interface signals MDIO
(management data input/output) and MDC (management data clock).
Figure 15 provides the AC test load for eTSEC.
Figure 15. eTSEC AC Test Load
8.3.1
MII Management DC Electrical Characteristics
The MDC and MDIO are defined to operate at a supply voltage of 2.5 V or 3.3 V. The DC electrical
characteristics for MDIO and MDC are provided in Table 30 and Table 31.
Table 30. MII Management DC Electrical Characteristics When Powered at 2.5 V
Parameter
Conditions
Symbol
Min
Max
Unit
Supply voltage (2.5 V)
LVDD1
2.37
2.63
V
Output high voltage
IOH = –1.0 mA
LVDD1 = Min
VOH
2.00
LVDD1 + 0.3
V
Output low voltage
IOL = 1.0 mA
LVDD1 = Min
GND – 0.3
0.40
V
Input high voltage
LVDD1 = Min
VIH
1.7
V
Input low voltage
LVDD1 = Min
VIL
–0.3
0.70
V
Input high current
VIN = LVDD1
IIH
—20
μA
Input low current
VIN = LVDD1
IIL
–15
μA
REF_CLK
RXD[1:0]
tRMRDX
tRMR
tRMRH
tRMRR
tRMRF
CRS_DV
RX_ER
tRMRDV
Valid Data
Output
Z0 = 50 Ω
LVDD/2
RL = 50 Ω
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