Which device should I use to create a new project for my FRDM-K20D50M board using CodeWarrior?

The CodeWarrior for MCU10.3 supports the MK20DX128VLH5 (mask 1N86B) board. To use this device, select Kinetis K Series > K2x Family > K20D (50 Mhz) Family > MK20DX128 from the Devices page of the New Bareboard Project wizard, as the following figure shows:

Figure 1. New Bareboard Project Wizard - Devices Page

New Bareboard Project Wizard - Devices Page