参数资料
型号: MCIMX514AJM6C
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: SPECIALTY MICROPROCESSOR CIRCUIT, PBGA529
封装: 19 X 19 MM, 0.8 MM PITCH, ROHS COMPLIANT, BGA-529
文件页数: 165/172页
文件大小: 2218K
代理商: MCIMX514AJM6C
i.MX51A Automotive and Infotainment Applications Processors, Rev. 4
92
Freescale Semiconductor
Electrical Characteristics
4.7.8.6
Interface to a TV Encoder
The interface has an 8-bit data bus, transferring a single 8-bit value (Y/U/V) in each cycle. The timing of
the interface is described in Figure 56.
NOTE
The frequency of the clock DISP_CLK is 27 MHz (within 10%)
The HSYNC, VSYNC signals are active low.
The DRDY signal is shown as active high.
The transition to the next row is marked by the negative edge of the
HSYNC signal. It remains low for a single clock cycle
The transition to the next field/frame is marked by the negative edge of
the VSYNC signal. It remains low for at least one clock cycles
At a transition to an odd field (of the next frame), the negative edges
of VSYNC and HSYNC coincide.
At a transition is to an even field (of the same frame), they do not
coincide.
The active intervals—during which data is transferred—are marked by
the HSYNC signal being high.
2 Display interface clock down time
3 Display interface clock up time
where CEIL(X) rounds the elements of X to the nearest integers towards infinity.
Tdicd
1
2
---T
diclk
ceil
×
2
DISP_CLK_DOWN
×
DI_CLK_PERIOD
-------------------------------------------------------------
=
Tdicu
1
2
---T
diclk
ceil
×
2
DISP_CLK_UP
×
DI_CLK_PERIOD
---------------------------------------------------
=
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