pnx1700 NXP Semiconductors, pnx1700 Datasheet - Page 394

• Manufacturer Part Number: pnx1700
• Description: Connected Media Processor
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Volume 1 of 1
Table 12: Programming Values for Supported PNX17xx Series Output Formats
4. Application Notes
PNX17XX_SER_1
Preliminary data sheet
Format
Parallel
D1 interface (422)
D1 Interface (444)
Double D1
4.1.1 Signature Analysis
4.1 Special Features
4.2 Programming Help
2
0
0
1
Signature analysis is a feature where QVCP calculates a 16-bit signature on the
upper 8 bits of each mixer output separately and sends it to a register which can be
read easily once “sig_done” of the Signature3 register (offset 0x10E058) is set.
QVCP follows a specific CRC algorithm to calculate the signature.
The signature analysis can be done independently on each layer output. Also, the
signatures of data (Alpha, upper, middle, Lower path) and control (misc path, which
consists of vsync, hsync, blank etc.) can be read separately. See the registers with
offsets 0x10E050, 0x10E054 and 0x10E058 for more details.
The tables below attempt to provide some help in choosing the programming
parameters for some of the video enhancement modules. It is to be noted, however,
that the parameter settings shown below are just example settings that worked well
on a particular experimental picture. One particular setting will not optimize the
enhancement effects for different images (even when they are part of a sequence).
For the real application, the parameters need to be adjusted, by the control software,
according to the measurement results (obtained from assorted measurement units in
other video modules of the parent chip).
1
1
0
1
x
0
0
0
x
1
1
1
1:1 1/0 up: YYYYYY
1:2 1/0 lo: UYVYUY...stream
1:3 1/0 lo: YUVYUV...stream
1:1 1/0 md: UVUVUVUVUVU
Rev. 1 — 17 March 2006
Output format
md: UUUUUU
lo: VVVVVV
lo: YYYYYYYYYYYY
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
PNX17xx Series
Chapter 11: QVCP
11-37