4.5.2 Memory assignment
Figure 4.5.2 shows the memory assignment M37220M3-XXXSP/FP.
Hexadecimal notation
0000
00C0
RAM
(256 bytes)
00FF
013F
0600
CRT display RAM
(80 bytes)
(Note)
06B3
D000
ROM
(12 K bytes)
FF00
FFDE
FFFF
Fig. 4.5.2 Memory assignment
Decimal notation
0
16
Internal RAM
(192 bytes)
SFR area
192
16
Special function register
(Refer to Figures 4.5.3 and 4.5.4)
255
16
Internal RAM
(64 bytes)
319
16
Not used
1536
16
RAM
for display
1719
16
Not used
53248
16
Internal ROM
65280
16
65502
16
Interrupt vector area
65535
16
7220 Group User's Manual
M37220M3-XXXSP/FP
10000
CRT display ROM
(4 K bytes)
Zero page
10FFF
Special page
1FFFF
Note: Refer to Table 4.5.7 Contents of CRT display RAM.
4.5 Functional description
65536
16
ROM
for display
69631
16
Not used
131071
16
4-11