RAM problem

I created a project for MC9S12DJ128B using metrowerks codewarrior v3.1 The issue is that when I created this project a prm file is generated which allocated  "RAM = READ_WRITE 0x0400 TO 0x1FFF;" When I calculated the size, it is giving 7Kb whereas in the datasheet it specifies the RAM size to be 8Kb. If this is the case, how can I make use of the rest 1Kb

RAM problem

Odd – does the map file contain any clues?  This should list where all the RAM is being used. Maybe a mistake by Metroworks? Is all the RAM on the MC9S12DJ128B all in one block?