ICH4的spec中有个IDE_CONFIG—IDE I/O Configuration Register(IDE—D31:F1) , F; j7 u k+ k( Q5 _5 s- LBit10:WR_PingPong_EN — R/W. 9 e! q& \( n" ^( n `0 = Disabled. The buffer behaves similar to PIIX4.6 E& ^) b/ N+ w1 p+ p2 C) y; |
1 = Enables the write buffer to be used in a split (ping/pong) manner.* [$ G7 z, F1 s* G1 d3 [4 X
哪位给解释下是什么意思呀,这一位的功能是什么呀?