As stated above the standard 1.2 triple is the HR12DE and the supercharged version is the HR12DDR
For the record the 1.2 turbo engine used in the Note, Qashqai and Pulsar was known as the HR12DDT
Other than the similarity of the codes I believe the 3 and 4 cylinder engines have no common ancestry. Renault never used the 3 cylinder engines in any of their cars, the triple they use in the Clio was only 900cc (now 1000 I think) and is known as the H4BT. It may be realeted to the 1200 turbo since they are both renault engines and if you knock a cylinder off the 1.2 4 cylinder you do end up with a 900 triple.