We can solve these problems effectively by reforming the hardware of the serial port or directly write a program for the interface register of 8250.
访问串行口可以有多种方法,可以用DOS功能调用,也可以用BIOS功能调用,但是DOS功能调用和BIOS功能调用在实际应用中存在一些问题,通过对串行口的硬件进行改造或直接对8250内部的接口寄存器编程,可以比较好地解决此类问题,在实际应用中能取得良好的效果,对于除了串行口接MODEM以外的其它应用,这种方法都是有效的。
The method to achieve circuit of A16/D16 register-based interface is put forward, the softpanel and drivers to apparatus are developed.
系统设计了A16/D16寄存器基接口电路,开发了软面板和仪器驱动程序。
controller bus address register
控制器总线地址寄存器
The actual address that is placed on the address bus when accessing a memory location or register.
当访问内存位置或寄存器时,在地址总线上的真实的地址。
address register
【计】 地址寄存器
interrupt (address) register
中断(地址)寄存器
boundary (address) register
边界(地址)寄存器
BSAR (Buffer Storage Address Register)
缓冲存贮器地址寄存器
memory address select register
存储器地址选择寄存器
memory buffer address register
存储器缓冲地址寄存器
EMAR (Experimental Memory Address Register)
实验存贮器地址寄存器
experimental memory address register
实验存储器地址寄存器
hardware return-address storage
硬件返回地址寄存器
interrupt-page address register
中断页面地址寄存器
current track address register
当前磁道地址寄存器
logic track address register
逻辑磁道地址寄存器
maintenance control address register
维护控制地址寄存器
track current address register
磁道现行地址寄存器
MCAR (Maintenance Control Address Register
)维修控制地址寄存器
print line buffer address register
打印行缓冲地址寄存器
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