20-101-0303 Rabbit Semiconductor, 20-101-0303 Datasheet - Page 32

• Manufacturer Part Number: 20-101-0303
• Description: SMARTSCREEN OP7100 W/TOUCHSCREEN
• Manufacturer: Rabbit Semiconductor

Specifications of 20-101-0303

• Display Type: STN - Super-Twisted Nematic
• Viewing Area: 121.00mm L x 91.00mm W
• Backlight: CCFL - White
• Dot Pitch: 0.36mm x 0.36mm
• Dot Pixels: 320 x 240 (QVGA)
• Interface: Serial
• Product: Prototyping Accessories
• Processor Type: Z180
• Sram: 128 KB
• Flash: 512 KB
• Number Of I/os: 16
• Backup Battery: 3 V Lithium Coin Type
• Operating Voltage: 10 V to 30 V
• Power Consumption: 4.5 W
• Interface Type: Ethernet
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Display Mode: -
• Dot Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 20-101-0303; 20-101-303; 20-101-303; 316-1175

Coordinate Systems
Figure 3-8 shows the coordinate systems for the touchscreen and the LCD.
Figure 3-8. Coordinate Systems
(row, column)
LCD Controller Chip
The LCD controller chip provides support for the LCD module. The
controller chip is attached to the data bus on the OP7100, and is mapped to
the I/O address space. This interface is composed of eight data bits, one
address line, and three control lines (RD, WR, and 1335-CS).
The interface from the LCD controller to the LCD module is unidirectional.
Data flow from the controller chip to the LCD module. A number of control
lines are provided for this function, but not all of them are used for a particu-
lar LCD module. The controller continually reads the SRAM for data
placed there by the microprocessor, and refreshes the display periodically.
32 Hardware
OP7100