參數(shù)資料
型號: MPC5200
廠商: 飛思卡爾半導體(中國)有限公司
英文描述: Hardware Specifications
中文描述: 硬件規(guī)格
文件頁數(shù): 46/80頁
文件大小: 790K
代理商: MPC5200
MPC5200 Data Sheet, Rev. 4
Electrical and Thermal Characteristics
Freescale Semiconductor
46
Figure 31. Ethernet Timing Diagram—MII Serial Management
3.3.10 USB
Table 34. MII Serial Management Channel Signal Timing
Sym
Description
Min
Max
Unit
SpecID
M9
MDC falling edge to MDIO output delay
0
25
ns
A9.9
M10
MDIO (input) to MDC rising edge setup
10
ns
A9.10
M11
MDIO (input) to MDC rising edge hold
10
ns
A9.11
M12
MDC pulse width high
1
NOTES:
1
MDC is generated by MPC5200 with a duty cycle of 50% except when MII_SPEED in the FEC MII_SPEED control
register is changed during operation. See the MPC5200 User Manual [1].
2
The MDC period must be set to a value of less then or equal to 2.5 MHz (to be compliant with the IEEE MII
characteristic) by programming the FEC MII_SPEED control register. See the MPC5200 User Manual [1].
160
ns
A9.12
M13
MDC pulse width low
(1)
160
ns
A9.13
M14
MDC period
2
400
ns
A9.14
Table 35. Timing Specifications—USB Output Line
Sym
Description
Min
Max
Units
SpecID
1
USB Bit width
1
NOTES:
1
Defined in the USB config register, (12 Mbit/s or 1.5 Mbit/s mode).
83.3
667
ns
A10.1
2
Transceiver enable time
83.3
667
ns
A10.2
3
Signal falling time
7.9
ns
A10.3
4
Signal rising time
7.9
ns
A10.4
M13
M12
M11
MDC (Output)
MDIO (Input)
MDIO (Output)
M10
M9
M14
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