Display output clock polarity?

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Display output clock polarity?

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Contributor II

Can someone at Freescale verify this documentation?

Data Sheet or Document Name:i.MX53 Multimedia Applications Processor Reference Manual
Revision #:2, 12/2011
Page #:3141
Section/Figure/Table:IPU_DI0_GENERAL field descriptions
Severity:Critical
Subject:LCD display clock polarity
Description:The reference manual says:
---
17 di0_polarity_disp_clk
DI0 Output Clock's polarity
This bits define the polarity of the DI0's clock.
1 The output clock is active high
0 The output clock is active low
---


The i.MX53xD Applications Processors for Consumer Products, Rev. 4.1 datasheet says:
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IPP_DISP_CLK latches data into the panel on its negative edge (when positive polarity is selected).
----

However, the reference manual does not explain what is high polarity or low polarity.

Please clarify.
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