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YGV619 View Datasheet(PDF) - LSI Corporation

Part Name
Description
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YGV619
LSI
LSI Corporation  LSI
YGV619 Datasheet PDF : 15 Pages
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YGV619
s Block Diagram
D31-0
A23-2
CSREG
CSMEM
DREQ
RD
A1/WR3
WR2-0
WAIT
READY
INT
RESET
CPU
INTERFACE
SYCKIN
SYCKOUT
FSC
CSYNC
HSYNC
HSIN
VSIN
CRT
CONTROLLER
DCKIN
DCKOUT
GCKIN
DRI[5:0]
DGI[5:0]
DBI[5:0]
DRAWING
PROCESSOR
UNIT
VIDEO
CAPTURE
CONTROLLER
SDRAM
INTERFACE
SDQ31-0
SA12-0
SBA1-0
SCS
RAS
CAS
WE
DQM3-0
SDCLK
PIXEL
DATA
CONTROLLER
AT1-0
GCKOUT
DRO[5:0]
DGO[5:0]
DBO[5:0]
DAC
R, G, B
AVDP6 performs parallel processing including operation of writing display data into video memory (SDRAM)
connected on the local bus (drawing function) and operation of sequentially reading bit map image stored in the
video memory in accordance with monitor scanning (display function).
Drawing function:
This function transfers bit map image data configured on the external memory of CPU to video memory. For the
transfer of the data, a method that maps the video memory as external memory managed by CPU and performs the
transfer as the transfer between external memories of CPU, or a method that uses internal drawing processor of
AVDP6 to configure the display image on the video memory can be used.
Display function:
This function displays the bit map image stored in the video memory in accordance with the display parameters
that are stored in the internal registers of AVDP6 and the video memory. Basically, AVDP6 automatically sends out
display data and refreshes SDRAM once initial setting for internal registers are completed. When performing
dynamic processing such as scroll, the processing that synchronizes with the scanning of AVDP6 can be performed
easily by using internal flag polling of AVDP6 or interrupt function.
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