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随着便携计算机的广泛使用,移动无线上网发展迅速,综合便携计算机自身的限制以及无线上网modem的要求,需要开发利用便携计算机的PCMCIA接口进行通信的无线上网modem。本文给出了一种无线上网modem的PCMCIA接口实现方法,介绍了Pc Card协议和Elan公司设计的遵从该协议的接口芯片VPU16551,叙述无线上网modem的PCMCIA接口的硬件和软件设计。
With the widespread use of portable computers, the rapid development of mobile wireless Internet access, the limitations of integrated portable computers and wireless modem need to develop wireless PC modem using portable computer PCMCIA interface to communicate wireless modem. This paper presents a method for implementing the PCMCIA interface for wireless modem. The paper introduced the PC Card protocol and the interface chip VPU16551 designed by Elan to comply with the protocol and the hardware and software design of the PCMCIA interface for wireless modem.