Mancini's position has been the subject of recurring speculation throughout the season and it may be questioned again if City suffer a shock loss to relegation-threatened Wigan in the final this weekend.
But the Italian has spoken often enough about how confident he feels in the post and we wants to continue bringing silverware to the Etihad Stadium.
Defeating Wigan would bring a third major trophy in three seasons and this is his only concern.
The Italian said: "I won seven trophies at Inter in four years and they sacked me after four years.
"This is football. I know football enough to understand this situation.
"I want to do only my job well, if it is possible, and continue to win every year. This is my target.
"I don't have other situations where I want to improve. I think it is important for every club to have a manager who can take a lot of decisions about the team, but now it is important we win this trophy."
City are anxious to claim the FA Cup as consolation following their failure to defend the Barclays Premier League title they won last season.
They are odds-on favourites against the Latics, whose progress to the final has been overshadowed by their battle against the drop.
But Mancini is taking no notice of the form book and has warned his team must be on top of their game, much like his old Sampdoria team were then they thrashed Serie B Ancona 6-1 in the second leg of 1994 Coppa Italia final.
He said: "I played Sampdoria-Ancona, Italian Cup, many years ago."In England it is totally different because if you play against team who plays for relegation, if you want to win, you should play not 100, but 200 per cent.
"For them it is the best moment in their life. If you don't play well, if you don't play a good game, you can't win."
Despite their struggles in the Premier League, Wigan have a reputation for playing good football.
Roberto Martinez's men even outplayed City for large spells of their meeting at Eastlands last month only to lose to a late Carlos Tevez goal.
Mancini said: "Every game we play against Wigan we have had a problem. We never win easy.
"First of all, they try to play football, always.
"Also, when they are losing a game, they continue to play football because they want to attack with a lot of players, and when they attack they are very dangerous.
"Never do they stay back too deep to defend the result.
"They don't play only counter-attack, they play football, they play to win."
Because of the way Wigan play, Mancini is not surprised that Martinez - heavily linked with Liverpool and Aston Villa in past summers - is again being tipped for a move, this time to Everton.
Mancini said: "I hope that Sunderland (stay up) because (Paolo) di Canio is manager and Wigan because I like the chairman and Roberto Martinez.
"I think Martinez can deserve also to manage a top team.
"He is a good manager. He did a very good job with Wigan and he has saved them also from relegation (in the past).
"This year they could have a problem but they still have a chance to stay in the Premier League."
The vacancy at Everton has arisen because David Moyes is to move to City's arch-rivals Manchester United in the summer to fill the void left by the retirement of Sir Alex Ferguson.
Mancini has had his difficulties against Moyes in the past, with his City side having lost six of their last eight clashes with Everton. The pair were also involved in a touchline scuffle three years ago.
When reminded of Moyes' record against him and whether he might take it to United, Mancini said: "Yes, Everton!
"Our problem is Everton, I don't know, we will see next year. I think he is a good manager."
Mancini has enjoyed a good rivalry with Ferguson since his arrival at City in 2009.
City memorably beat United in their 2011 FA Cup semi-final and pipped them to the league title last season.
But for Mancini, there is no doubt which moment, from October 2011, stands out most.
He said: "Every derby was fantastic, even when we lost.
"But it is normal you think about the derby when we won 6-1 at Old Trafford.
"I think that it is impossible, I don't think there is another tie like this or can be another tie like this - 6-1 at Old Trafford against United is a good memory for us."