
Liquid Crystal Display Controller (LCDC)
22-30
Freescale Semiconductor
screen-sized window can be vertically or horizontally scrolled (panned) anywhere inside the virtual page
boundaries. The software must control the starting address in the SSA properly so that the scanning logic’s
system memory pointer (SMP) stays within the VPW and VPH limits to prevent the display of strange
artifacts on the screen.
VPH is used by the programmer only for boundary checks. There is no VPH parameter internal to the
LCDC.
VPW is used in calculating the RAM starting address representing the beginning of each displayed line.
SSA sets the address of data for the first line of a frame. For each subsequent line, VPW is added to an
accumulation initialized by the SSA to yield the starting address of that line.
22.4.2
Graphic Window on Screen
Graphic window is supported in LCD color panel screens for viewfinder and graphic hardware cursor
functions. Similar to the screen, the virtual page width, graphic window start address and graphic window
width and height are software programmable. The position of the graphic window on screen is specified
by the graphic window position register.
shows how the graphic window is configured and
placed on the screen.
Figure 22-28. Graphic Window on Screen
The graphic window and background plane can be alpha blended. The alpha value is programmable on a
window basis, which means all the pixels in the graphic window have the same level of transparency.
There are a total of 256 levels of transparency to be configured. In addition, one of the pixel colors can be
chosen for color keying in which the selected pixel color in the graphics window is made totally
transparent. One of the applications can be a graphical hardware cursor.
NOTE
The graphic window and background images must have the same bpp
setting.
Background Image
Screen
Graphic Window Image
Graphic window
Graphic Window Virtual Page Width
Graphic Window Width
Graphic
Graphic Window Start Address
Graphic Window Position
Height
Window
MCF5329 Reference Manual, Rev 3
Содержание MCF5329
Страница 106: ...ColdFire Core 3 32 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 126: ...Enhanced Multiply Accumulate Unit EMAC 4 20 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 148: ...Cache 5 22 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 154: ...Static RAM SRAM 6 6 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 184: ...Power Management 8 18 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 204: ...Reset Controller Module 10 8 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 220: ...System Control Module SCM 11 16 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 228: ...Crossbar Switch XBS 12 8 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 268: ...General Purpose I O Module 13 40 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 392: ...SDRAM Controller SDRAMC 18 30 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 436: ...Fast Ethernet Controller FEC 19 44 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 564: ...Liquid Crystal Display Controller LCDC 22 44 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 594: ...FlexCAN 23 30 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 678: ...Pulse Width Modulation PWM Module 26 22 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 684: ...Watchdog Timer Module 27 6 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 692: ...Programmable Interrupt Timers PIT0 PIT3 28 8 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 704: ...DMA Timers DTIM0 DTIM3 29 12 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 720: ...Queued Serial Peripheral Interface QSPI 30 16 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 754: ...UART Modules 31 34 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 770: ...I2 C Interface 32 16 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 790: ...Message Digest Hardware Accelerator MDHA 33 20 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 866: ...Debug Module 36 50 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 902: ...Register Memory Map Quick Reference A 26 Freescale Semiconductor MCF5329 Reference Manual Rev 3...