Driver types and required termination部分对DASP-的说明如下:
Signal:DASP- Source:Device Driver type:OC Device:10K PU Notes:6、9
6. Pull-up values are based on +5 V Vcc. Except for the pull-up on PDIAG-:CBLID- whic
VCC for backward compatibility, pull-ups may be to VDD3. For systems supporting Ul
greater than 4, the host pull-up on IORDY:DDMARDY-:DSTROBE should be to VDD3.
9 .The host shall not drive DASP-. If the host connects to DASP- for any purpose, the host shall ensure that the signal level detected on the interface for DASP- shall maintain VoH and VoL compatibility, given the I oH and IoL requirements of the DASP- device drivers
按照上面的说明,DASP-是属于硬盘驱动的OC门,那我用单片机连接的时候是不是给这个脚外接一个10K的上拉电阻和一个5V的电源,然后接到单片机引脚上去?或者我根本就不用管这个脚?
哪位高手有过相关开发经验请给我指导指导,我是特别想把这个电路给开发出来,谢谢了!