i.MX51 Image Rotator performance

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i.MX51 Image Rotator performance

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norishinozaki
Contributor V

Hello Champs,

In the i.MX51 RM, there is this description,

imx51_image_rotate.png

I'm using a LCD with 1024x768@60Hz, the pixel clock is 65MHz.

Simply, 1024x768x60 = 47MHz pixels/sec, which is within the spec 50 M pixels/sec.

Isn't there bit per pixel specification?

Can I use Image Rotator for 1024x768@60Hz?


BR,
Nori Shinozaki

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igorpadykov
NXP Employee
NXP Employee

Hi Nori

data is provided for YUV/RGB format, 8 bits/value

as described in sect.42.1.3.3.2 Image Rotator (IRT),

sorry there is no bit per pixel specification.

>Can I use Image Rotator for 1024x768@60Hz?

in theory yes, in practice performance may be affected by available

memory bandwidth (depending on application) as IRT uses

input/output from/to system memory.

Best regards
igor
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1,403 次查看
igorpadykov
NXP Employee
NXP Employee

Hi Nori

data is provided for YUV/RGB format, 8 bits/value

as described in sect.42.1.3.3.2 Image Rotator (IRT),

sorry there is no bit per pixel specification.

>Can I use Image Rotator for 1024x768@60Hz?

in theory yes, in practice performance may be affected by available

memory bandwidth (depending on application) as IRT uses

input/output from/to system memory.

Best regards
igor
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------

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norishinozaki
Contributor V

Hello Igor,

Thanks!

BR, N.S.

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