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MSC7116 датащи(PDF) 30 Page - Freescale Semiconductor, Inc

номер детали MSC7116
подробное описание детали  Low-Cost 16-bit DSP with DDR Controller and 10/100 Mbps Ethernet MAC
PDF  60 Pages
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производитель  FREESCALE [Freescale Semiconductor, Inc]
домашняя страница  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

MSC7116 датащи(HTML) 30 Page - Freescale Semiconductor, Inc

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MSC7116 Data Sheet, Rev. 13
Electrical Characteristics
Freescale Semiconductor
30
2.5.6.2
Transmit Signal Timing
2.5.6.3
Asynchronous Input Signal Timing
Table 22. Transmit Signal Timing
No.
Characteristics
Min
Max
Unit
800
Transmit clock period:
• MII: TXCLK
• RMII: REFCLK
40
20
ns
ns
801
Transmit clock pulse width high—as a percent of clock period
• MII: RXCLK
• RMII: REFCLK
35
14
7
65
%
ns
ns
802
Transmit clock pulse width low—as a percent of clock period:
• MII: RXCLK
• RMII: REFCLK
35
14
7
65
%
ns
ns
805
Transmit clock to TXDn, TX_EN, TX_ER invalid
4
ns
806
Transmit clock to TXDn, TX_EN, TX_ER valid
14
ns
Figure 11. Ethernet Receive Signal Timing
Table 23. Asynchronous Input Signal Timing
No.
Characteristics
Min
Max
Unit
807
• MII: CRS and COL minimum pulse width (1.5
× TXCLK period)
• RMII: CRS_DV minimum pulse width (1.5 x REFCLK period)
60
30
ns
ns
Figure 12. Asynchronous Input Signal Timing
Valid
Transmit
TX_EN
TXDn
TX_ER
805
806
clock
800
801
802
CRS
COL
807
CRS_DV



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