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SPEAR300 Datenblatt(PDF) 71 Page - STMicroelectronics

Teilenummer SPEAR300
Bauteilbeschribung  Embedded MPU with ARM926 core, flexible memory support, powerful connectivity features and human machine interface
PDF  83 Pages
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Hersteller  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

SPEAR300 Datenblatt(HTML) 71 Page - STMicroelectronics

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SPEAr300
Timing requirements
Doc ID 16324 Rev 2
71/83
Figure 36.
Paths from MDC/MDIO pads
Note:
When MDIO is used as output the data are launched on the falling edge of the clock as
shown in Figure 35.
Table 38.
MDC/MDIO timing
Parameter
Value
Frequency
tCLK period
614.4 ns
1.63 MHz
tCLK fall (tf)
1.18 ns
tCLK rise (tr)
1.14 ns
Output
tmax = ~tCLK /2
307 ns
tmin = ~tCLK /2
307 ns
Input
tSETUPmax = t1max - t3min
6.88 ns
tHOLDmin = t1min - t3max
-1.54 ns
Q
Q
SET
CLR
D
t2
t3
CLK
MDIO
t1
Q
Q SET
CLR
D
MDC
INPUT
OUTPUT



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