Datasheet

■ The LIDD Controller is also capable of reading back status or data from the LCD panel, if the
latter has this capability. This is set up and activated in a similar manner to the write function
described above.
Table 26-4 on page 1853 describes how the signals are used to interface to external LCD modules,
which are configured by the LCDLIDDCTL register.
Table 26-4. LIDD I/O Name Map
LCD Display I/O DescriptionLCD Display I/O
Name
Signal NameLCDLIDDCTL[2:0]Data
Bits
Interface
Type
Display
Type
LCD Data Bus (length defined by
instruction)
DATA[7:4]LCDDATA[7:4]
0x44
HD44780
Type
Character
Display
Enable Strobe (first display)E (or E0)LCDAC
Read/WriteR/WLCDLP
Register Select (Data/not InstructionRSLCDFP
Enable Strobe (second display
optional)
E1LCDMCLK
LCD Data Bus (length defined by
instruction)
DATA[7:0]LCDDATA[7:0]
0x48
HD44780
Type
Character
Display
Enable Strobe (first display)E (or E0)LCDAC
Read/WriteR/WLCDLP
Register Select (Data/not InstructionRSLCDFP
Enable Strobe (second display
optional)
E1LCDMCLK
LCD Data Bus (16 bits always
available)
DATA[15:0]LCDDATA[15:0]
0x1
Up
to 16
6800
Family
Micro
Interface
Graphic
Display
Enable ClockELCDCP
Read/WriteR/WLCDLP
Address/Data SelectA0LCDFP
Chip Select (first display)CS (or CS0)LCDAC
Chip Select (second display optional)CS1LCDMCLK
Synchronous Clock (optional)NoneLCDMCLK0x0
LCD Data Bus (16 bits always
available)
DATA[15:0]LCDDATA[15:0]
0x3
Up
to 16
8080
Family
Micro
Interface
Graphic
Display
Read StrobeRDLCDCP
Write StrobeWRLCDLP
Address/Data SelectA0LCDFP
Chip Select (first display)CS (or CS0)LCDAC
Chip Select (second display optional)CS1LCDMCLK
Synchronous Clock (optional)NoneLCDMCLK0x2
26.3.3 Raster Control
The Raster mode is enabled by setting the MODESEL bit in the LCD Control (LCDCTL) register.
The following table shows the active external signals when this mode is active:
1853December 13, 2013
Texas Instruments-Advance Information
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TM4C129XNCZAD Microcontroller