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SPEAR1340 bảng dữ liệu(PDF) 166 Page - STMicroelectronics

tên linh kiện SPEAR1340
Giải thích chi tiết về linh kiện  Dual-core Cortex A9 HMI embedded MPU
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SPEAR1340 bảng dữ liệu(HTML) 166 Page - STMicroelectronics

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Timing characteristics
SPEAr1340
166/200
Doc ID 023063 Rev 4
5.7.4
MII receive timing characteristics
The timing characterization is performed assuming an input transition of 2 ns on all the
inputs.
These timings are valid for 10 and 100 Mbps operation.
Figure 28.
MII RX timing waveform
Table 75.
MII TX timing characteristics
Symbol
Description
Min
Max
Unit
TCLK
MAC_TXCLK clock period
40
–
ns
TCLKhigh
MAC_TXCLK pulse high
12
–
ns
TCLKlow
MAC_TXCLK pulse low
12
–
ns
TD
MAC_TXCLK to MII output data
5.1
18
ns
Table 76.
MII RX timing characteristics
Symbol
Description
Min
Max
Unit
TCLK
MAC_RXCLK clock period
40
–
ns
TCLKhigh MAC_RXCLK pulse high
12
–
ns
TCLKlow MAC_RXCLK pulse low
12
–
ns
Ts
Setup time for MII receive data
3.8
ns
Th
Hold time for MII receive data
0
Th
MAC_RXCLK
(input)
MAC_RXD0-MAC_RXD3,
MAC_RXER, MAC_RXDV
TCLKhigh
TCLKlow
Ts



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