CFG_DioChannelDirection gets or sets DI/O ports' direction.
| Type | INT8U[] |
| Length | port count * sizeof(INT8U) |
| Access type | Read/Write |
| Value | each bit represent one channel:
0: input 1: output There are four macro we have defined DIO_ChannelDir_DI: 0x00 DIO_ChannelDir_DO: 0xff DIO_ChannelDir_HighHalf_DO: 0xf0 DIO_ChannelDir_LowHalf_DO: 0x0f |