m30800sagp Renesas Electronics Corporation., m30800sagp Datasheet - Page 15

• Manufacturer Part Number: m30800sagp
• Description: Single-chip 16/32-bit Cmos Microcomputer
• Manufacturer: Renesas Electronics Corporation.

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3. Memory
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Figure 3.1 Memory Map
C
Figure 3.1 shows a memory map of the M32C/80 Group.
The M32C/80 Group provides 16-Mbyte address space addressed from 000000
The fixed interrupt vectors are allocated from address FFFFDC
dress of each interrupt routine.
The internal RAM is allocated from address 000400
allocated from address 000400
tine is called or an interrupt is acknowledged.
SFRs, consisting of control registers for peripheral functions such as I/O port, A/D converter, serial I/O,
timers, is allocated from address 000000
cannot be accessed by users.
The special page vector table is addressed from FFFE00
tion and JSRS instruction. Refer to the Renesas publication M32C/80 Series Software Manual for details.
In microprocessor mode, some spaces are reserved and cannot be accessed by users.
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NOTE:
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1. Watchdog timer interrupt and oscillation stop detection interrupt share vectors.
000000
000400
0023FF
010000
FFFFFF
16
16
16
16
16
f o
16
5
Reserved Space
External Space
6
to 0023FF
Internal RAM
SFRs
16
to 0003FF
16
. Besides storing data, it becomes stacks when the subrou-
16
FFFFDC
FFFFFF
FFFE00
16
to higher. For example, a 8-Kbyte internal RAM is
. All blank spaces within SFRs are reserved and
16
to FFFFDB
16
16
16
16
Undefined Instruction
Watchdog Timer
BRK Instruction
Address Match
to FFFFFF
Special Page
Vector Table
Overflow
Reset
NMI
16
. It is used for the JMPS instruc-
16
(1)
16
. It stores the starting ad-
to FFFFFF
16
.
3. Memory