| MicroProcessor | |||
| Easy | Medium | Difficult | |
| 2020 | |||
| 2018 | — | — | — |
| 2017(Dec) | — | — | — |
| 2017(May) | — | 1.Architecture | — |
| 2016 | — | — | — |
| 2015 | — | — | 1.Architecture |
| 2014 | — | — | — |
| 2013 | — | 1.Architecture(2) 2.ISR | 1.Instruction Set |
| 2011 | 1.DMA | 1.Addressing | 1.Mis |
| 2009 | — | — | 1.Mis |
| 2008 | 1.Mis | 1.Interrupts | 1.Assembly language program |
| 2007 | — | — | — |
