ICH4的spec中有个IDE_CONFIG—IDE I/O Configuration Register(IDE—D31:F1)! @% K" ~) N! `! }( H
Bit10:WR_PingPong_EN — R/W.0 h) A* G$ ]8 U$ [
0 = Disabled. The buffer behaves similar to PIIX4.& {2 F) D' y$ i. p
1 = Enables the write buffer to be used in a split (ping/pong) manner.$ U" u7 m8 i. C, P2 J9 m
哪位给解释下是什么意思呀,这一位的功能是什么呀?