各位,请教一个问题,谁用过s1d13506ic,我想请教如下问题: 1,它的datasheet说: Register Mapping
The S1D13506 registers are memory-mapped. When the system decodes the input pins as CS# = 0 and M/R# = 0, the registers may be accessed. The register space is decoded by A20-A0. 但是A0已经接高电平了,这不是不对了嘛?因为A0一直是高电平啊。怎么回事。
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