Liquid Crystal Display Controller (LCDC)
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Fig 20-8 MCU I/F command setting timing parameters
Fig 20-9 MCU I/F data writing timing parameters
20.2.2.2
Read Cycle
As Fig 20-10 shows, the RD signal is driven from high to low and then pulled back to high during the read cycle. The data line is asserted by LCD
driver when there is a falling edge of RD. When there is a rising edge of RD, you can read the data line.
Fig 20-10 MCU I/F read command timing parameters
20.2.2.3
MCU System with VSYNC Interface
LCDC VSYNC interface starts synchronization to display the moving picture with MCU system interface according to the frame-synchronizing
signal VSYNC. In this mode, LCDC controls the synchronization of frame.
CMD Address
CMD Parameter
RSSET
RSHOLD
WRACTW
WRINACTW
WDNDELAY
WRNUM=1
Max(WRINACTW,
WDNDELAY)
CSSET
RS
CS
WR
D[15:0]
RAMWR
Data 1
WRNUM = 0
(continuous mode)
Data N
RS
CS
WR
D[15:0]
CMD Address
RX Data (invalid)
RX Data (valid)
WRINACTW
RDACTW
RDINACTW
RDNUM=3
RX Data(valid)
RDINACTW
RS
CS
WR
RD
D[15:0]
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2019-05-15 10:08:03