参数资料
型号: M37272EFFP
元件分类: 微控制器/微处理器
英文描述: 8-BIT, OTPROM, 8.1 MHz, MICROCONTROLLER, PDSO42
封装: 0.450 INCH, 0.80 MM PITCH, PLASTIC, SSOP-42
文件页数: 42/134页
文件大小: 1554K
代理商: M37272EFFP
12
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
M37272M6H/M8H/MAH/MFH–XXXSP/FP
M37272E8SP/FP, M37272EFSP/FP
MITSUBISHI MICROCOMPUTERS
Rev. 1.0
8.2 MEMORY
8.2.1 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.
8.2.2 RAM
RAM is used for data storage and for stack area of subroutine calls
and interrupts.
8.2.3 ROM
ROM is used for storing user programs as well as the interrupt vector
area.
8.2.4 OSD RAM
RAM for display is used for specifying the character codes and col-
ors to display.
8.2.5 OSD ROM
ROM for display is used for storing character data.
8.2.6 Interrupt Vector Area
The interrupt vector area contains reset and interrupt vectors.
8.2.7 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.
8.2.8 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.
8.2.9 ROM Correction Memory (RAM)
This is used as the program area for ROM correction.
Fig. 8.2.1 Memory Map (M37272M6H/M8H-XXXSP/FP, M37272E8SP/FP)
000016
00C016
00FF16
087F16
SFR1 area
Not used
FFFF16
FFDE16
FF0016
080016
Interrupt vector area
Special page
OSD RAM
(128 bytes)
(See note)
Zero page
020016
020F16
SFR2 area
Not used
030016
Note: Refer to Table 8.11.3 OSD RAM.
00BF16
010016
01FF16
05BF16
Not used
3BFF16
140016
800016
Not used
ROM correction function
Vector 1: address 030016
Vector 2: address 032016
032016
053F16
A00016
M37272M6H-
XXXSP/FP
ROM
(24K bytes)
M37272M8H-
XXXSP/FP,
M37272E8SP/FP
ROM
(32K bytes)
1000016
1FFFF16
Not used
OSD ROM
(10K bytes)
s M37272M6H/M8H-XXXSP/FP, M37272E8SP/FP
M37272M6H-
XXXSP/FP
RAM
(1024bytes)
M37272M8H-
XXXSP/FP,
M37272E8SP/FP
RAM
(1152bytes)
12
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
M37272M6H/M8H/MAH/MFH–XXXSP/FP
M37272E8SP/FP, M37272EFSP/FP
MITSUBISHI MICROCOMPUTERS
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