参数资料
型号: STR912FW42X6
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 32-BIT, FLASH, 96 MHz, RISC MICROCONTROLLER, PQFP128
封装: 14 X 14 MM, PLASTIC, LQFP-128
文件页数: 59/73页
文件大小: 1538K
代理商: STR912FW42X6
Obsolete
Product(s)
- Obsolete
Product(s)
Electrical characteristics
STR91xF
62/73
6.14
Communication interface electrical characteristics
6.14.1 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 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
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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