ICH4的spec中有个IDE_CONFIG—IDE I/O Configuration Register(IDE—D31:F1)! d8 _, K+ i5 I' [4 R0 y v
Bit10:WR_PingPong_EN — R/W. % D2 D4 a. Q! m1 O4 |0 = Disabled. The buffer behaves similar to PIIX4. % t: N/ k1 W9 o& V1 = Enables the write buffer to be used in a split (ping/pong) manner. ! h' L G- f. O! A9 y哪位给解释下是什么意思呀,这一位的功能是什么呀?