IDR register
| ID0 | ID0: Port A input data bit.These bits are read-only. They contain the input value of the corresponding I/O port |
| ID1 | ID1: Port A input data bit.These bits are read-only. They contain the input value of the corresponding I/O port |
| ID2 | ID2: Port A input data bit.These bits are read-only. They contain the input value of the corresponding I/O port |
| ID3 | ID3: Port A input data bit.These bits are read-only. They contain the input value of the corresponding I/O port |
| ID8 | ID8: Port A input data bit.These bits are read-only. They contain the input value of the corresponding I/O port |
| ID9 | ID9: Port A input data bit.These bits are read-only. They contain the input value of the corresponding I/O port |
| ID10 | ID10: Port A input data bit.These bits are read-only. They contain the input value of the corresponding I/O port |
| ID11 | ID11: Port A input data bit.These bits are read-only. They contain the input value of the corresponding I/O port |