PxSEL2 PxSEL Pin Function
0 0 I/O function is selected.
0 1 Primary peripheral module function is selected.
1 0 Reserved. See device-specific data sheet.
1 1 Secondary peripheral module function is selected.
user guide上就有这么一个表,可是并没有说那些算基本外设模块,也没说哪些算第二外设,看了msp430g2452的data sheet,也没看到PxSEL2 = 1和PxSEL = 0所保留的功能是什么。想请问各位大牛除了第一个的剩余三个都分别包含了什么功能? |