ICH4的spec中有个IDE_CONFIG—IDE I/O Configuration Register(IDE—D31:F1) 3 r1 _; G. y6 r2 s. I/ g/ IBit10:WR_PingPong_EN — R/W.2 i6 t' I& T; d' _6 R& C
0 = Disabled. The buffer behaves similar to PIIX4. $ p$ i0 d8 a. s1 h1 = Enables the write buffer to be used in a split (ping/pong) manner." R4 l& [, ~0 |; f5 o
哪位给解释下是什么意思呀,这一位的功能是什么呀?