參數(shù)資料
型號: MPC8548VUAQJB
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 1000 MHz, MICROPROCESSOR, CBGA783
封裝: 29 X 29 MM, 1 MM PITCH, FLIP CHIP, LEAD FREE, CERAMIC, BGA-783
文件頁數(shù): 76/142頁
文件大小: 1504K
代理商: MPC8548VUAQJB
MPC8548E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 5
Freescale Semiconductor
39
Ethernet Management Interface Electrical Characteristics
Figure 19 provides the AC test load for eTSEC.
Figure 19. eTSEC AC Test Load
Figure 20 shows the RMII receive AC timing diagram.
Figure 20. RMII Receive AC Timing Diagram
9
Ethernet 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). The electrical characteristics for
GMII, RGMII, RMII, TBI, and RTBI are specified in “Section 8, “Enhanced Three-Speed Ethernet
9.1
MII Management DC Electrical Characteristics
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 Table 36.
Table 36. MII Management 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 = –1.0 mA)
VOH
2.10
OVDD + 0.3
V
Output low voltage (OVDD =Min, IOL = 1.0 mA)
VOL
GND
0.50
V
Input high voltage
VIH
2.0
V
Input low voltage
VIL
—0.90
V
Output
Z0 = 50 Ω
LVDD/2
RL = 50 Ω
TSEC
n_TX_CLK
RXD[1:0]
tRMRDX
tRMR
tRMRH
tRMRR
tRMRF
CRS_DV
RX_ER
tRMRDV
Valid Data
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