MC96FR116CNovember, 2018 Rev.1.8 418.2.1 Indirect Address AreaNote that in Figure 8.2 the SFRs and the indirect address RAM have the same addresses (80H~FFH).Nevertheless, they are two separate areas and accessed in two different ways.For example the instructionMOV 80H, #0AAHwrites 0AAH to Port 0 which is one of the SFRs and the instructionMOV R0, #80HMOV @R0, #0BBHwrites 0BBH in location 80H of data RAM. Thus, after execution of both of the above instructions Port 0will contain 0AAH and location 80H of the RAM will contain 0BBH.Note that stack operations are examples of indirect addressing, so the upper 128 bytes of data RAMare available as stack space in MC96FR116C.8.2.2 Direct And Indirect Address AreaThe 128 bytes of RAM which can be accessed by both direct and indirect addressing can be dividedinto 3 segments as listed below and shown in Figure 8.3.000102030405060708090A0B0C0D0E0F101112131415161718191A1B1C1D1E1F202122232425262728292A2B2C2D2E2F303132333435363738393A3B3C3D3E3F404142434445464748494A4B4C4D4E4F505152535455565758595A5B5C5D5E5F606162636465666768696A6B6C6D6E6F707172737475767778797A7B7C7D7E7FR5R4R3R2R1R0R6R72FHRegister bank 0(8 bytes)Register bank 1(8 bytes)Register bank 2(8 bytes)Register bank 3(8 bytes)Bit addressableGeneral purposeregister20H18H17H10H0FH08H07H00H30H7FH1FH80 bytes16 bytes(128bits)8 bytes8 bytes8 bytes8 bytesFigure 8-3 Lower 128 Byte of IRAM
