User's Manual

Table Of Contents
xvi S3C2450X RISC MICROPROCESSOR
Table of Contents (Continued)
Chapter 23 Camera Interface
1 Overview....................................................................................................................................................23-1
1.1 Features...........................................................................................................................................23-2
2 External Interface ......................................................................................................................................23-2
2.1 Signal Description ............................................................................................................................23-2
2.2 Timing Diagram................................................................................................................................23-3
3 External/Internal Connection Guide ..........................................................................................................23-5
4 Camera Interface Operation......................................................................................................................23-5
4.1 Two DMA Ports................................................................................................................................23-5
4.2 CLOCK Domain ...............................................................................................................................23-7
4.3 Frame Memory Hirerarchy...............................................................................................................23-7
4.4 Memory Storing Method ..................................................................................................................23-9
4.5 Timing Diagram for Register Setting................................................................................................23-10
4.6 MSDMA Feature ..............................................................................................................................23-13
5 Software Interface .....................................................................................................................................23-14
6 Camera Interface Special Registers .........................................................................................................23-14
6.1 Source Format Register...................................................................................................................23-14
6.2 Window Option Register ..................................................................................................................23-15
6.3 Global Control Register ...................................................................................................................23-17
6.4 Window Option Register 2 ...............................................................................................................23-19
6.5 Y1 Start Address Register ...............................................................................................................23-19
6.6 Y2 Start Address Register ...............................................................................................................23-19
6.7 Y3 Start Address Register ...............................................................................................................23-20
6.8 Y4 Start Addres
s
Register ...............................................................................................................23-20
6.9 Cb1 Start Address Register .............................................................................................................23-20
6.10 Cb2 Start Address Register ...........................................................................................................23-21
6.11 Cb3 Start Address Register ...........................................................................................................23-21
6.12 Cb4 Start Address Register ...........................................................................................................23-21
6.13 Cr1 Start Address Register............................................................................................................23-21
6.14 Cr2 Start Address Register............................................................................................................23-22
6.15 Cr3 Start Address Register............................................................................................................23-22
6.16 Cr4 Start Address Register............................................................................................................23-22
6.17 Codec Target Format Register ......................................................................................................23-23
6.18 Codec DMA Control Register ........................................................................................................23-25
6.19 Register Setting Guide for Codec Scaler and Preview Scaler ......................................................23-26
6.20 Codec Pre-Scaler Control Register 1 ............................................................................................23-29
6.21 Codec Pre-Scaler Control Register 2 ............................................................................................23-29
6.22 Codec Main-Scaler Control Register .............................................................................................23-30
6.23 Codec DMA Target Area Register.................................................................................................23-30
6.24 Codec Status Register...................................................................................................................23-31
6.25 RGB1 Start Address Register........................................................................................................23-31
6.26 RGB2 Start Address Register........................................................................................................23-32
6.27 RGB3 Start Address Register........................................................................................................23-32
6.28 RGB4 Start Addres
s
Register........................................................................................................23-32
6.29 Preview Target Format Register....................................................................................................23-33
6.30 Preview DMA Control Register ......................................................................................................23-34