SPEAR300-2 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

SPEAR300-2

Embedded MPU with ARM926 core, flexible memory support, powerful connectivity features and human machine interface

STMicroelectronics 

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Architecture overview

SPEAr300

2.20

Keyboard controller

SPEAr300 provides a GPIO/keyboard controller block which is a two-mode input and output

port.

Main features:

● The selection between the two modes is an APB Bus programmable bit.

● Keyboard interface uses 18 pins

● 18-bit general-purpose parallel port with input or output single pin programmability

● Pins can be used as general purpose I/O or to drive a 9 x 9 keyboard (81 keys)

● Keyboard scan period can be adjusted between 10 ms and 80 ms

● Supports auto-scanning with debouncing.

2.21

CLCD controller

SPEAr300 has a color liquid crystal display controller (CLCDC) that provides all the

necessary control signals to interface directly to a variety of color and monochrome LCD

panels.

Main features:

● Resolution programmable up to 1024 x 768

● 16-bpp true-color non-palletized, for color STN and TFT

● 24-bpp true-color non-palletized, for color TFT

● Supports single and dual panel mono super twisted nematic (STN) displays with 4 or 8-

bit interfaces

● Supports single and dual-panel color and monochrome STN displays

● Supports thin film transistor (TFT) color displays

● 15 gray-level mono, 3375 color STN, and 32 K color TFT support

● 1, 2, or 4 bits per pixel (bpp) palletized displays for mono STN

● 1, 2, 4 or 8-bpp palletized color displays for color STN and TFT

● Programmable timing for different display panels

● 256 entry, 16-bit palette RAM, arranged as a 128 x 32-bit RAM physically frame, line

and pixel clock signals

● AC bias signal for STN and data enable signal for TFT panels patented gray scale

algorithm

● Supports little and big-endian

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Doc ID 16324 Rev 2

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