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SPEAR600 Fiches technique(PDF) 81 Page - STMicroelectronics

No de pièce SPEAR600
Description  Embedded MPU with dual ARM926 core, flexible memory support, powerful connectivity features and programmable LCD interface
PDF  97 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

SPEAR600 Fiches technique(HTML) 81 Page - STMicroelectronics

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SPEAr600
Timing characteristics
Doc ID 16259 Rev 3
81/97
Note:
To calculate the tSETUP value for the PHY you have to consider the next tCLK rising edge, so
you have to apply the following formula: tSETUP = tCLK - tmax
6.6.2
MII transmit timing specifications
Figure 35.
MII TX waveforms
Figure 36.
Block diagram of MII TX pins
Note:
To calculate the tSETUP value for the PHY you have to consider the next tCLK rising edge, so
you have to apply the following formula: tSETUP = tCLK - tmax
Table 51.
MII TX timings
Parameter
Value using MII 100 Mb [tCLK
period = 40 ns 25 MHz]
Value using MII 10 Mb [tCLK
period = 400 ns 2.5 MHz]
tmax= t2max- t3min
6.8 ns
6.8 ns
tmin= t2min- t3max
2.9 ns
2.9 ns
tSETUP
33.2 ns
393.2 ns
TXD0-TXD3
Tmin
Tmax
TX_CLK
Tclock
Tr
Tf
Q
Q
SET
CLR
D
t2
t3
TX_CLK
TXD[0..3]
TX[0..3]



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