ICH4的spec中有个IDE_CONFIG—IDE I/O Configuration Register(IDE—D31:F1)2 q1 G. A4 }, ?! U6 w, R Y( i
Bit10:WR_PingPong_EN — R/W.4 Q- z- G$ y) |5 i( u
0 = Disabled. The buffer behaves similar to PIIX4. # ~# L6 o# |' ^- j+ o1 = Enables the write buffer to be used in a split (ping/pong) manner.+ d h# O* @! o) z }: [
哪位给解释下是什么意思呀,这一位的功能是什么呀?