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Memory Map

The following memory map shows which areas of the memory space are available for your program's use. Essentially, if you do not use the target monitor, you have the entire address space available. Note that the MCB167 provides only 265 KB of RAM (00:0000h — 03:FFFFh).

Address Range Description
00:0000h — 00:0007h Free RAM
00:0008h — 00:000Bh NMI Vector used by Monitor
00:000Ch — 00:00ABh Free RAM
00:00ACh — 00:00AFh Serial Receive Vector used by Monitor
00:00B0h — 00:F9FFh Free RAM
00:FA00h — 00:FFFFh Internal RAM and SFRs
01:0000h — 03:E8FFh Free RAM
03:E900h — 03:EAFFh RAM used by Monitor (Data Area)
03:EB00h — 03:FFFFh RAM used by Monitor (Code Area)
04:0000h — 07:FFFFh RAM (optional)
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