參數資料
型號: STR912FW42X6T
廠商: 意法半導體
元件分類: ADC
英文描述: ARM966E-S 16/32-Bit Flash MCU with Ethernet, USB, CAN, AC Motor Control, 4 Timers, ADC, RTC, DMA
中文描述: ARM966E - ? 16/32位閃存微控制器與以太網,USB,加拿大,交流電機控制,4個計時器,模數轉換器,RTC和DMA的
文件頁數: 58/72頁
文件大?。?/td> 664K
代理商: STR912FW42X6T
STR91xF
Electrical characteristics
61/72
6.13
Communication interface electrical characteristics
6.13.1 10/100 Ethernet MAC electrical characteristics
VDDQ = 2.7 - 3.6V, VDD = 1.65 - 2V, TA = -40 / 85 °C unless otherwise specified.
Ethernet MII Interface Timings
Figure 16. MII_RX_CLK and MII_TX_CLK timing diagram
Table 20.
MII_RX_CLK and MII_TX_CLK timing table
Figure 17. MDC timing diagram
Table 21.
MDC timing table
Ethernet MII management timings
Figure 18. Ethernet MII management timing diagram
Symbol
Parameter
Symbol
Value
Unit
Min
Max
1
Cycle time
tc(CLK)
40
ns
2
Pulse duration HIGH
tHIGH(CLK)
40%
60%
3
Pulse duration LOW
tLOW(CLK)
40%
60%
4
Transition time
tt(CLK)
1ns
Symbol
Parameter
Symbol
Value
Unit
Min
Max
1
Cycle time
tc(MDC)
266
ns
2
Pulse duration HIGH
tHIGH(MDC)
40%
60%
3
Pulse duration LOW
tLOW(MDC)
40%
60%
4
Transition time
tt(MDC)
1ns
MII_RX_TCLK, MII_TX_CLK
1
2
3
4
1
2
3
4
MDC
1
2
3
MDC
MDIO
output
MDIO
input
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