参数资料
型号: MPC8377EWLANB
厂商: Freescale Semiconductor
文件页数: 53/127页
文件大小: 0K
描述: ACCESS POINT/ROUTER MPC8377
标准包装: 1
MPC8377E PowerQUICC II Pro Processor Hardware Specifications, Rev. 8
Freescale Semiconductor
31
This figure 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).
This figure 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 31 and Table 32.
Table 31. 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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