PIC24FJ256DA210 Datasheet, PDF (305/408 Pages) Microchip Technology – 64/100-Pin, 16-Bit Flash Microcontrollers with Graphics Controller and USB On-The-Go (OTG)

PIC24FJ256DA210 FAMILY
22.0 GRAPHICS CONTROLLER
MODULE (GFX)
Note:
This data sheet summarizes the features
of this group of PIC24F devices. It is not
intended to be a comprehensive reference
source. For more information, refer to the
“PIC24F Family Reference Manual”,
Section 43. “Graphics Controller Mod-
ule (GFX)” (DS39731). The information in
this data sheet supersedes the information
in the FRM.
The Graphics Controller (GFX) module is specifically
designed to directly interface with the display glasses,
with a built-in analog drive, to individually control pixels
in the screen. The module also provides an accelerated
rendering of vertical and horizontal lines, rectangles,
copying of rectangular area between different locations
on the screen, drawing texts and decompressing
packed data. The use of the accelerated rendering is
performed using command registers. Once initiated,
the hardware will perform the rendering, and the
software can either poll the status, or use the interrupts
to continue rendering of the succeeding shapes.
Key features of the GFX module include:
• Direct interface to three categories of display
glasses:
- Monochrome STN
- Color STN
- Color TFT
• Programmable vertical and horizontal synchroni-
zation signals’ timing and display clock frequency
to meet display’s frame rates
• Optional internal or external display buffer to
accommodate different types of display resolution
• Graphic hardware accelerators:
- Character Graphics Processing Unit
(CHRGPU)
- Rectangle Copy Graphics Processing Unit
(RCCGPU)
- Inflate Processing Unit (IPU)
• 256 Entries Color Look-up Table (CLUT)
• Supports 1/2/4/8/16 bits-per-pixel (bpp) color depth
• Programmable display resolution
• Supports multiple display interfaces:
- 4/8/16-bit Monochrome STN
- 4/8/16-bit Color STN
- 9/12/18/24-bit color TFT (18 and 24-bit
displays are connected as 16-bit 5-6-5 RGB
color format)
FIGURE 22-1:
GRAPHICS MODULE OVERVIEW
Display Interface
Clock (DISPCLK)
System Clock
Graphics
Controller Clock
(G1CLK)
PIC24F Graphics
Controller Module
Registers
and Control
Interface
GPU Command
Interface
Display Module
Interface
GD<15:0>
HSYNC
VSYNC
RCCGPU CHRGPU
IPU
Memory Request Arbiter
CLUT
GEN
GPWR
GCLK
System
RAM
 2010 Microchip Technology Inc.
DS39969B-page 305