介    绍 三星的S3C44B0X 16/32位RISC处理器被设计来为手持设备等提供一个低成本高性能的方案。 S3C44B0X提供以下配置：2.5V ARM7TDMI 内核带有8Kcache ;可选的internal SRAM;LCD Controller(最大支持256色STN，使用LCD专用DMA)；2-ch UART with handshake(IrDA1.0, 16-byte FIFO) / 1-ch SIO； 2-ch gener

Real Time Clock / CMOS Setup Reference.AT BIOS provides a number of basic functions to use RTC. The following short list should provide enough information to use them.Using RTC hardware interrupt in C++ code.

The PCF8563 is a CMOS1 Real-Time Clock (RTC) and calendar optimized for low power consumption. A programmable clock output, interrupt output, and voltage-low detector are also provided. All addresses and data are transferred serially via a two-li