ZR36050 Просмотр технического описания (PDF) - Zoran Corporation

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ZR36050

JPEG IMAGE COMPRESSION PROCESSOR

Zoran Corporation 

ADVANCE INFORMATION

ZR36050

CONTROL REGISTERS FORMAT

The following table describes the encoding/decoding control registers format. The MBCV, TCV_NET, TCV_DATA, SF, AF, and ACT

registers are not used in the JPEG Lossless mode.

Table 10. Control Register Format

Address

Content

Description

000

GO

GO command virtual register (Write only)

001

[0 0]

002

HARDWARE

Hardware setting register

003

MODE

Operational mode register

004

OPTIONS

Options register

005

MBCV

Maximum block code volume

006

MARKERS_EN

Marker segments enable

007

INT_REQ_0

Interrupt masks for Status register 0.

008

INT_REQ_1

Interrupt masks for Status register 1.

009

TCV_NET(H)

High byte of the Target Net Code Volume

00A

TCV_NET(MH)

Middle high byte of the Target Net Code Volume

00B

TCV_NET(ML)

Middle low byte of the Target Net Code Volume

00C

TCV_NET(L)

Lowest byte of the Target Net Code Volume

00D

TCV_DATA(H)

High byte of the Target Data Code Volume

00E

TCV_DATA(MH) Middle high byte of the Target Data Code Volume

00F

TCV_DATA(ML) Middle low byte of the Target Data Code Volume

010

TCV_DATA(L)

Low byte of the Target Data Code Volume

011

SF(H)

High byte of the Scale Factor

012

SF(L)

Low byte of the Scale Factor

013

AF(H)

High byte of the Allocation Factor

014

AF(M)

Middle byte of the Allocation Factor

015

AF(L)

Low byte of the Allocation Factor

016

ACV(H)

High byte of the Accumulated data/total Code Volume

017

ACV(MH)

Middle high byte of the Accum. data/total Code Volume

018

ACV(ML)

Middle low byte of the Accum. data/total Code Volume

019

ACV(L)

Low byte of the Accumulated data/total Code Volume

01A

ACT(H)

High byte of the Accumulated Total Activity

01B

ACT(MH)

Middle High byte of the Accumulated Total Activity

01C

ACT(ML)

Middle low byte of the Accumulated Total Activity

01D

ACT(L)

Low byte of the Accumulated Total Activity

01E

ACV_TRUN(H)

High byte of the accumulated truncated bits

01F

ACV_TRUN(MH) Middle high byte of the accumulated truncated bits

33

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