参数资料
型号: SPEAR300-2
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 32-BIT, FLASH, 333 MHz, RISC MICROCONTROLLER, PBGA289
封装: 15 X 15 MM, 1.70 MM HEIGHT, 0.80 MM PITCH, ROHS COMPLIANT, LFBGA-289
文件页数: 15/83页
文件大小: 1027K
代理商: SPEAR300-2
Architecture overview
SPEAr300
22/83
Doc ID 16324 Rev 2
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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