7220 Datasheet, PDF (236/303 Pages) Renesas Technology Corp – 8-BIT SINGLE-CHIP MICROCOMPUTER

6.5 Memory assignment
APPENDIX
6.5 Memory assignment
RAM
(384 bytes)
for
M37221M6
RAM
(320 bytes)
for
M37221M4
Hexadecimal notation
000016
Decimal notation
0
Internal RAM
1000016
CRT display ROM
(8 K bytes)
00C016
SFR area
192
Special function register
00FF16 ^{(Refer to Figures 2. 3. 3 and 2. 3. 4) 255}
010016
Internal RAM
017F16
383
01BF16
447
Zero page
11FFF16
Not used
CRT display RAM
(96 bytes)
(See note)
060016
06B716
RAM
for display
1536
1719
Not used
A00016
40960
C00016
49152
ROM
for display
Not used
65536
73727
ROM
(24 K bytes)
for
M37221M6
ROM
(16 K bytes)
for
M37221M4
Internal ROM
FF0016
FFFF16
Interrupt vector area
65280
65502
65535
Special page
1FFFF16
131071
Note: Refer to Table 2.11.4 Contents of CRT display RAM.
Fig. 6.5.1 Memory assignment of M37221M4-XXXSP and M37221M6-XXXSP/FP
7220 Group User’s Manual
6-17