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 |
| ID4 | ID4: Port A input data bit.These bits are read-only. They contain the input value of the corresponding I/O port |
| ID5 | ID5: Port A input data bit.These bits are read-only. They contain the input value of the corresponding I/O port |
| ID6 | ID6: Port A input data bit.These bits are read-only. They contain the input value of the corresponding I/O port |
| ID7 | ID7: 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 |
| ID12 | ID12: Port A input data bit.These bits are read-only. They contain the input value of the corresponding I/O port |
| ID13 | ID13: Port A input data bit.These bits are read-only. They contain the input value of the corresponding I/O port |
| ID14 | ID14: Port A input data bit.These bits are read-only. They contain the input value of the corresponding I/O port |
| ID15 | ID15: Port A input data bit.These bits are read-only. They contain the input value of the corresponding I/O port |