参数资料
型号: MCIMX258CVM4
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 400 MHz, MICROPROCESSOR, PBGA400
封装: 17 X 17 MM, 0.80 MM PITCH, ROHS COMPLIANT, PLASTIC, MAPBGA-400
文件页数: 150/154页
文件大小: 1498K
代理商: MCIMX258CVM4
i.MX25 Applications Processor for Consumer and Industrial Products, Rev. 8
Freescale Semiconductor
95
Figure 66. LCDC TFT Mode Timing Diagram
3.7.13
Pulse Width Modulator (PWM) Timing Parameters
Figure 67 depicts the timing of the PWM, and Table 73 lists the PWM timing characteristics.
The PWM can be programmed to select one of three clock signals as its source frequency. The selected
clock signal is passed through a prescaler before being input to the counter. The output is available at the
pulse width modulator output (PWMO) external pin.
Table 72. LCDC TFT Mode Timing Parameters
ID
Description
Min.
Ma
Unit
T1
Pixel clock period
22.5
1000
ns
T2
HSYNC width
1
T1
1 T is pixel clock period
T3
LD setup time
5
ns
T4
LD hold time
5
ns
T5
Delay from the end of HSYNC to the beginning of the OE pulse
3
T1
T6
Delay from end of OE to the beginning of the HSYNC pulse
1
T1
T6
OE
T5
Line 1
Line 2
Line n
Line 1
VSYNC
HSYNC
LSCLK
LD
T1
T2
T3
T4
HSYNC
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