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0MAP-L138 HPI GPIO功能使用请教

Other Parts Discussed in Thread: OMAP-L138

我现在需要将OMAP-L138的HPI功能管脚GPIO功能,但是我发现芯片资料suruh77a.pdf中显示的GPIO_EN、GPIO_DIR1、GPIO_DAT1、GPIO_DIR2、GPIO_DAT2寄存器不能设置,感觉这个芯片就没有这些寄存器一样,并且在TI的资料中也有不一致的地方,在另外的资料sprs586d.pdf中显示还有GPIO_DIR3、GPIO_DAT3寄存器。我现在很迷惑,这个芯片究竟有没有这些寄存器;有的话究竟怎么操作控制,请给我答案谢谢