ICH4的spec中有个IDE_CONFIG—IDE I/O Configuration Register(IDE—D31:F1); T" C. d$ C; f: O: ~
Bit10:WR_PingPong_EN — R/W. 1 b$ T m# Z$ h4 F. ]0 = Disabled. The buffer behaves similar to PIIX4. , j, G5 A- X" k. w G; k6 |1 = Enables the write buffer to be used in a split (ping/pong) manner.* q6 q; j( z* n/ k- x
哪位给解释下是什么意思呀,这一位的功能是什么呀?