ICH4的spec中有个IDE_CONFIG—IDE I/O Configuration Register(IDE—D31:F1) " P M# n. A% G0 I* O# ?% IBit10:WR_PingPong_EN — R/W.0 a1 s* Z6 E& ^; u2 n2 q: J/ t
0 = Disabled. The buffer behaves similar to PIIX4. 5 `5 I- @( i" q3 g, Q/ d4 K1 = Enables the write buffer to be used in a split (ping/pong) manner.1 y# b1 v p. B X) }
哪位给解释下是什么意思呀,这一位的功能是什么呀?