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2.2.2 Data Memory
The data memory configuration is shown below. External RAM is enabled from
0x8000-0xffff.
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Hex
0000
Memory-Mapped
Register and
Reserved
005F
0060
On-Chip
007F
DARAM B2
0080
Reserved
01FF
0200
On-Chip DARAM
B0 (CNF = 0)
02FF
Reserved (CNF = 1)
0300
On-Chip DARAM
B1' (CNF = 0)
03FF
Reserved (CNF = 1)
0400
Reserved
07FF
SARAM DON=1
0800
External DON=0
0FFF
1000
Illegal
6FFF
Peripheral Memory-
7000
Mapped Registers
(System, ADC, SCI,
73FF
SPI, I/O, Interrupts)
7400
Peripheral Memory-
Mapped Registers
743F
(Event Manager A)
7440
Reserved
74FF
7500
Event Manager B
753F
7540
Reserved
77FF
7800
Illegal
7FFF
8000
External RAM
FFFF
JP7 = 1-2
Figure 2-4, Data Memory Configuration
Spectrum Digital, Inc
2-7
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