参数资料
型号: M52259EVB
厂商: Freescale Semiconductor
文件页数: 35/46页
文件大小: 0K
描述: BOARD EVAL FOR 52259 COLDFIRE V2
产品培训模块: ColdFire MCF5225x
标准包装: 1
系列: ColdFire®
类型: MCU
适用于相关产品: MCF52259
所含物品: 板,线缆,文档,DVD,闪光灯驱动和电源
Electrical Characteristics
2.11.3
Asynchronous Input Signal Timing Specifications
Table 19. MII Transmit Signal Timing
Num
E9
Characteristic
CRS, COL minimum pulse width
Min
1.5
Max
Unit
TXCLK period
CRS, COL
E9
Figure 9. MII Async Inputs Timing Diagram
2.11.4
MII Serial Management Timing Specifications
Table 20. MII Serial Management Channel Signal Timing
Num
E10
E11
E12
E13
E14
E15
Characteristic
MDC cycle time
MDC pulse width
MDC to MDIO output valid
MDC to MDIO output invalid
MDIO input to MDC setup
MDIO input to MDC hold
Symbol
t MDC
Min
400
40
25
10
0
Max
60
375
Unit
ns
% t MDC
ns
ns
ns
ns
E10
E11
MDC (Output)
E11
MDIO (Output)
E12
E13
Valid Data
E14
E15
MDIO (Input)
Valid Data
Figure 10. MII Serial Management Channel TIming Diagram
2.12
General Purpose I/O Timing
GPIO can be configured for certain pins of the QSPI, DDR Control, timer, UART, Interrupt and USB interfaces. When in GPIO
mode, the timing specification for these pins is given in Table 21 and Figure 11 .
The GPIO timing is met under the following load test conditions:
?
50 pF / 50 ? for high drive
MCF52259 ColdFire Microcontroller, Rev. 5
35
Freescale
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