ICH4的spec中有个IDE_CONFIG—IDE I/O Configuration Register(IDE—D31:F1) " p$ {5 g% d- D5 _Bit10:WR_PingPong_EN — R/W. " i1 Q0 m V. @0 = Disabled. The buffer behaves similar to PIIX4.$ g4 ^5 z) l$ }2 s+ y
1 = Enables the write buffer to be used in a split (ping/pong) manner. ( m& D8 K' P1 X+ r' ]$ J7 Q7 c3 ]哪位给解释下是什么意思呀,这一位的功能是什么呀?