5. Memory organization
A96G140/A96G148/A96A148 User’s manual
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All of the bytes in the lower 128bytes can be accessed by either direct or indirect addressing. The upper
128bytes of RAM can only be accessed by indirect addressing. These spaces are used for data RAM
and stack.
FFH
80H
7FH
00H
FFH
80H
Upper 128bytes
Internal RAM
(Indirect Addressing)
Special Function Registers
128bytes
(Direct Addressing)
Lower 128bytes
Internal RAM
(Direct or Indirect
Addressing)
Figure 12. Data Memory Map