參數(shù)資料
型號: STR912FM94X6T
廠商: 意法半導(dǎo)體
英文描述: ARM966E-S TM 16/32-Bit Flash MCU with Ethernet, USB, CAN, AC motor control, 4 timers, ADC, RTC, DMA
中文描述: ARM966E - ?商標16/32位閃存微控制器與以太網(wǎng),USB,加拿大,交流電機控制,4個定時器,模數(shù)轉(zhuǎn)換器,RTC和DMA的
文件頁數(shù): 62/73頁
文件大小: 595K
代理商: STR912FM94X6T
Electrical characteristics
STR91xF
62/73
6.14 Communication interface electrical characteristics
6.14.1 10/100 Ethernet MAC electrical characteristics
V
DDQ
= 2.7 - 3.6V, V
DD
= 1.65 - 2V, T
A
= -40 / 85 °C unless otherwise specified.
Ethernet MII Interface Timings
Figure 16. MII_RX_CLK and MII_TX_CLK timing diagram
Table 24.
MII_RX_CLK and MII_TX_CLK timing table
Figure 17. MDC timing diagram
Table 25.
MDC timing table
Ethernet MII management timings
Figure 18. Ethernet MII management timing diagram
Symbol
Parameter
Symbol
Value
Unit
Min
Max
1
Cycle time
t
c
(CLK)
t
HIGH
(CLK)
t
LOW
(CLK)
t
t
(CLK)
40
ns
2
Pulse duration HIGH
40%
60%
3
Pulse duration LOW
40%
60%
4
Transition time
1
ns
Symbol
Parameter
Symbol
Value
Unit
Min
Max
1
Cycle time
t
c
(MDC)
t
HIGH
(MDC)
t
LOW
(MDC)
t
t
(MDC)
266
ns
2
Pulse duration HIGH
40%
60%
3
Pulse duration LOW
40%
60%
4
Transition time
1
ns
MII_RX_TCLK, MII_TX_CLK
1
2
3
4
4
1
2
3
4
4
MDC
1
2
3
MDC
MDIO
output
MDIO
input
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