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MPC5673K bảng dữ liệu(PDF) 123 Page - Freescale Semiconductor, Inc

tên linh kiện MPC5673K
Giải thích chi tiết về linh kiện  Microcontroller is a 32-bit embedded controller designed for advanced
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nhà sản xuất  FREESCALE [Freescale Semiconductor, Inc]
Trang chủ  http://www.freescale.com
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MPC5673K bảng dữ liệu(HTML) 123 Page - Freescale Semiconductor, Inc

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Electrical characteristics
MPC5675K Microcontroller Data Sheet, Rev. 4
Preliminary—Subject to Change Without Notice
Freescale Semiconductor
123
3.22.8
Fast ethernet interface
MII signals use CMOS signal levels compatible with devices operating at either 5.0 V or 3.3 V. Signals
are not TTL compatible. They follow the CMOS electrical characteristics.
3.22.8.1
MII receive signal timing (RXD[3:0], RX_DV, RX_ER, and RX_CLK)
The receiver functions correctly up to a RX_CLK maximum frequency of 25 MHz +1%. There is no
minimum frequency requirement. In addition, the system clock frequency must exceed four times the
RX_CLK frequency.
2tPDI_IS
SR Input setup time1
—3
—
ns
3tPDI_IH
SR Input hold time1
—3
—
ns
NOTES:
1 Data can be captured at both launching and capturing edge of PDI_CLK.
PDI timing
Table 69. MII receive signal timing
No.
Parameter
Min
Max
Unit
1
RXD[3:0], RX_DV, RX_ER to RX_CLK setup
5—
ns
2
RX_CLK to RXD[3:0], RX_DV, RX_ER hold
5—
ns
3
RX_CLK pulse width high
40%
60%
RX_CLK period
4
RX_CLK pulse width low
40%
60%
RX_CLK period
Table 68. PDI electrical characteristics (continued)
No.
Symbol
Parameter
Conditions
Min
Max
Unit
PDI_CLOCK
2
3
PDI_DATA[15:0]
Input Data Valid
PDI_LINE_V
PDI_FRAME_V
1



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