Analog Devices ADSP-SC58 Series Hardware Reference Manual page 25

EPPI Features .............................................................................................................................................. 18–1
EPPI Functional Description ....................................................................................................................... 18–2
ADSP-SC58x EPPI Register List.............................................................................................................. 18–3
ADSP-SC58x EPPI Interrupt List ........................................................................................................... 18–3
ADSP-SC58x EPPI Trigger List ............................................................................................................... 18–4
RGB Data Formats ................................................................................................................................... 18–4
Data Clipping........................................................................................................................................... 18–4
Data Mirroring......................................................................................................................................... 18–5
Windowing............................................................................................................................................... 18–6
Preamble, Blanking and Stripping Support............................................................................................... 18–6
EPPI Definitions ...................................................................................................................................... 18–7
EPPI Block Diagram ................................................................................................................................ 18–8
EPPI Architectural Concepts .................................................................................................................... 18–8
EPPI Interface....................................................................................................................................... 18–8
Reset Operation .................................................................................................................................. 18–10
Frame Sync Polarity and Sampling Edge.............................................................................................. 18–10
Direct Memory Access (DMA) ............................................................................................................ 18–11
EPPI Clock ......................................................................................................................................... 18–12
EPPI Operating Modes.............................................................................................................................. 18–13
ITU-R 656 Modes.................................................................................................................................. 18–13
ITU-R 656 Background ...................................................................................................................... 18–13
ITU-R 656 Input Modes..................................................................................................................... 18–16
Entire Field ...................................................................................................................................... 18–17
Active Video..................................................................................................................................... 18–17
Vertical Blanking Interval (VBI)....................................................................................................... 18–17
ITU-R 656 Output in General-Purpose Transmit Modes.................................................................... 18–18
Frame Synchronization in ITU-R 656 Modes......................................................................................... 18–19
General-Purpose EPPI Modes ................................................................................................................ 18–20
General-Purpose 0 Frame Sync Mode.................................................................................................. 18–20
General-Purpose 1 Frame Sync Mode.................................................................................................. 18–20
General-Purpose 2 Frame Sync Mode.................................................................................................. 18–21
ADSP-SC58x/ADSP-2158x SHARC+ Processor Hardware Reference xxv