ICH4的spec中有个IDE_CONFIG—IDE I/O Configuration Register(IDE—D31:F1)- `" s6 E1 R3 v' @7 h& m) a- M
Bit10:WR_PingPong_EN — R/W.: o4 U* F4 a) A& B& l$ C5 l i
0 = Disabled. The buffer behaves similar to PIIX4.6 e# e) a) }2 o3 P
1 = Enables the write buffer to be used in a split (ping/pong) manner.! _! g2 H5 e* _2 ?/ M
哪位给解释下是什么意思呀,这一位的功能是什么呀?