參數(shù)資料
型號(hào): VPC3200A
廠商: MICRONAS SEMICONDUCTOR HOLDING AG
元件分類: 消費(fèi)家電
英文描述: Comb Filter Video Processor
中文描述: SPECIALTY CONSUMER CIRCUIT, PQFP80
封裝: PLASTIC, QFP-80
文件頁數(shù): 73/78頁
文件大?。?/td> 1245K
代理商: VPC3200A
ADVANCE INFORMATION
VPC 323xD, VPC 324xD
Micronas
73
5.2. Application Note: PIP Mode Programming
5.2.1. Procedure to Program a PIP Mode
For the VPC
pip
or VPC
single
:
1. set the scaler according to the PIP size to be used
(see Table 2–11).
2. write the registers VPCMODE and PIPMODE
according to the mode to be set.
3. in expert mode write the registers NLIN, NPIX and
NPFB.
4. write the registers COLBGD, COLFR1, COLFR2,
HSTR and VSTR, if a different value as the default
one is used.
5. write the registers LINOFFS and PIXOFFS, if a dif-
ferent value as the default one or more than 4 inset
pictures in the X or Y direction are used.
6. write the register PIPOPER to fill the frame and
background of an inset picture. This step is repeated
for all inset pictures in a multi PIP application.
For the VPC
main
:
7. set the scaler to get a full size video
(see Table 2–11).
8. write the registers VPCMODE and PIPMODE
according to the mode to be set.
9. in expert mode write the registers NLIN, NPIX and
NPFB.
10. write the registers COLBGD, HSTR and VSTR, if a
different value as the default one is used.
11. write the register PIPOPER to start displaying PIP.
For the VPC
pip
or VPC
single
:
12. write the register PIPOPER to start filling a inset
picture with live video.
13. Only for tuner scanning: write the register
PIPOPER to stop filling a inset picture with live
video and changing the channel.
14. repeat steps 12 and 13 for all inset pictures in a
multi PIP application.
15. Only for VPC
single
: write the register PIPOPER to
start filling the main picture part outside the inset
picture(s) with live video.
For the VPC
main
:
16. write the registers HSTR and VSTR, if the PIP
position should be changed.
17. write the register PIPOPER, to quit the PIP mode.
In an application with a single VPC, step 7 - 11 and
16 - 17 are dropped. Additionally, the free running
mode should be set in the cases shown in Table 2–12.
5.2.2. I
2
C Registers Programming for PIP Control
To program a PIP mode, the register VPCMODE, PIP-
MODE and PIPOPER should be written always, all
other registers are used only in the expert mode or if
the default values are modified (see Table 5–1).
Table 5–1:
I
2
C register programing for PIP control
I
2
C register
update
VPCMODE, PIPMODE,
PIPOPER
should be written always
COLBGD, COLFR1,
COLFR2, HSTR, VSTR
should be written only, if the default values have to be modified
LINOFFS, PIXOFFS
VPC
pip
VPC
main
VPC
single
only used in expert
mode, when more than 4
inset pictures in the X or
Y direction are used.
not used.
only used if a different
value as the default one
or more than 4 inset pic-
tures in the X or Y direc-
tion are used
NLIN, NPIX, NPFB
should be written, only in the expert mode. (In the predefined modes the default
values are used.)
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