１概述Ｘ１２０３集成电路是一个带时钟／日历和两个闹钟（报警）的实时时钟芯片。它内含双端口时钟和报警器寄存器 ,这使其即使在读、写操作期间也能精确工作。该时钟／日历芯片提供了可通过一组寄存器进行控制和读出的功能。时钟使用低成本的３２．７６８ｋＨｚ晶振输入 ,能? 1 Overview The X1203 integrated circuit is a real-time clock chip with a clock / calendar and two alarms (alarms). It contains dual port clock and alarm registers, which allow it to work accurately even during read and write operations. The clock / calendar chip provides a set of registers can be controlled and read out of the function. Clock using low-cost 32.768kHz crystal oscillator input, can?