M37211M2 View Datasheet(PDF) - Renesas Electronics
Part Name
Description
Manufacturer
M37211M2
Renesas Electronics
M37211M2 Datasheet PDF : 60 Pages
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MITSUBISHI MICROCOMPUTERS
M37210M3-XXXSP/FP, M37210M4-XXXSP, M37211M2-XXXSP
M37210E4-XXXSP/FP, M37210E4SP/FP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
with ON-SCREEN DISPLAY CONTROLLER
MEMORY
Special Function Register (SFR) Area
The special function register (SFR) area in the zero page contains
control registers such as I/O ports and timers.
RAM
RAM is used for data storage and for stack area of subroutine calls
and interrupts.
ROM
ROM is used for sroring user programs as well as the interrupt vec-
tor area.
RAM for Display
RAM for display is used for specifing the character codes and colors
to display.
ROM for Display
ROM for display is used for storing character data.
Interrupt Vector Area
The interrupt vector area contains reset and interrupt vectors.
Zero Page
The 256 bytes from addresses 000016 to 00FF16 are called the zero
page area. The internal RAM and the special function registers
(SFR) are allocated to this area.
The zero page addressing mode can be used to specify memory and
register addresses in the zero page area. Access to this area with
only 2 bytes is possible in the zero page addressing mode.
Special Page
The 256 bytes from addresses FF0016 to FFFF16 are called the spe-
cial page area. The special page addressing mode can be used to
specify memory addresses in the special page area. Access to this
area with only 2 bytes is possible in the special page addressing
mode.
RAM
(320 bytes)
for
M37210M4
RAM
(256 bytes)
for
M37210M3
RAM
(192 bytes)
for
M37211M2
000016
00BF16
00FF16
SFR area
Zero page
013F16
017F16
200016
RAM for display (Note)
(72 bytes)
20B116
ROM for display
(3 K bytes)
300016
35FF16
380016
3DFF16
C00016
D00016
E00016
ROM
(16 K bytes)
for
M37210M4
ROM
(12 K bytes)
for
M37210M3
ROM
(8 K bytes)
for
M37211M2
FF0016
Fig. 2 Memory map
FFDE16
FFFF16
Not used
Not used
Not used
Not used
Interrupt vector area
Special page
Note : Refer to Table 6. Contents of CRT display RAM
7
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