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ICH4的spec中有个IDE_CONFIG—IDE I/O Configuration Register(IDE—D31:F1)
0 V- W# k1 g9 M8 W6 FBit10:WR_PingPong_EN — R/W.$ z( }, A5 P5 ]! l+ y/ i, i0 a: I z# \
0 = Disabled. The buffer behaves similar to PIIX4.2 a/ ^; R* \# Q) _' }
1 = Enables the write buffer to be used in a split (ping/pong) manner.* s6 L5 V( D% H3 v" m8 D, w$ P
哪位给解释下是什么意思呀,这一位的功能是什么呀? |
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