Datasheet

MC9RS08KA2 Series Data Sheet, Rev. 4
Freescale Semiconductor 25
Chapter 4
Memory
4.1 Memory Map
The memory map of the MCU is divided into the following groups:
• Fast access RAM using tiny and short instructions ($0000–$000E
1
)
• Indirect data access D[X] ($000E)
• Index register X for D[X] ($000F)
• Frequently used peripheral registers ($0010–$001E)
• PAGESEL register ($001F)
• RAM ($0020–$004F)
• Paging window ($00C0–$00FF)
• Other peripheral registers ($0200–$023F)
• Nonvolatile memory
— MC9RS08KA2: $3800–$3FFF
— MC9RS08KA1: $3C00—$3FFF
1. Physical RAM in $000E can be accessed through the D[X] register when the content of the index register X is $0E.