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Programming Notes and Examples

S1D13708

Issue Date: 01/11/20

X39A-G-003-01

ADVANCE

FOR

MAT

ION

Subje

ct to C

nge

PIP

Window Enable

The PIP

Window Enable bit enables a PIP

window within the main window. The loca-

tion of the PIP

window within the landscape window is determined by the PIP

X Posi-

tion registers (REG[84h],REG[85h],REG[8Ch],REG[8Dh]) and PIP

Y Position registers

(REG[88h],REG[89h],REG[90h],REG[91h]). The PIP

window has its own Display Start

Address registers (REG[7Eh],REG[7Dh],REG[7Ch]) and Line Address Offset registers
(REG[81h],REG[80h]). The PIP

window shares the same color depth and SwivelView

orientation as the main window.

PIP

Display Start Address

The PIP

Display Start Address register is a DWORD which represents an address that

points to the start of the PIP

window image in the display buffer. An address of 0 is the

start of the display buffer. For the following PIP

descriptions, the desired byte address is

the starting display address for the PIP

window image.

In SwivelView 0°, program the start address

= desired byte address

In SwivelView 90°, program the start address

= ((desired byte address + (PIP

width

bpp

+ ((4 - (PIP

width

bpp

8)) & 03h))

4) - 1

In SwivelView 180°, program the start address

= ((desired byte address + (PIP

Stride

× (

PIP

height

− 1))

+ (

PIP

width

bpp

8) + ((4 - (PIP

width

bpp

8)) & 03h))

4) - 1

In SwivelView 270°, program the start address

= (desired byte address + ((PIP

height - 1)

PIP

Stride))

PIP

Window Display Start Address Register 0

REG[7C]

Read/Write

PIP

Window Display Start Address Bits 7-0

PIP

Window Display Start Address Register 1

REG[7Dh]

Read/Write

PIP

Window Display Start Address Bits 15-8

PIP

Window Display Start Address Register 2

REG[7Eh]

Read/Write

n/a

PIP

Window

Display Start

Address

Bit 16