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参数资料
| 型号： | M30221FCFP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 16-BIT, FLASH, 10 MHz, MICROCONTROLLER, PQFP120 |
| 封装： | PLASTIC, LQFP-120 |
| 文件页数： | 3/48页 |
| 文件大小： | 565K |
| 代理商： | M30221FCFP |
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8
Memory
Mitsubishi microcomputers
M30221 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Operation of Functional Blocks
The M30221 group accommodates certain units in a single chip. These units include ROM and RAM to
store instructions and data and the central processing unit (CPU) to execute arithmetic/logic operations.
Also included are peripheral units such as timers, real time port, serial I/O, LCD drive control circuit, D-A
converter, A-D converter, DMAC and I/O ports.
Memory
Figure 1.4.1 is a memory map of the M30221 group. The address space extends the 1M bytes from ad-
dress 0000016 to FFFFF16. From FFFFF16 down is ROM. For example, in the M30221M3-XXXFP, there is
24K bytes of internal ROM from FA00016 to FFFFF16. The vector table for fixed interrupts such as the reset
_______
and NMI are mapped to FFFDC16 to FFFFF16. The starting address of the interrupt routine is stored here.
The address of the vector table for timer interrupts, etc., can be set as desired using the internal register
(INTB). See the section on interrupts for details.
From 0040016 up is RAM. For example, in the M30221M3-XXXFP, 1.5K bytes of internal RAM is mapped
to the space from 0040016 to 009FF6. In addition to storing data, the RAM also stores the stack used when
calling subroutines and when interrupts are generated.
The SFR area is mapped to 0000016 to 003FF16. This area accommodates the control registers for periph-
eral devices such as I/O ports, A-D converter, serial I/O, timers, and LCD, etc. Figures 1.7.1 to 1.7.3 are
location of peripheral unit control registers. Any part of the SFR area that is not occupied is reserved and
cannot be used for other purposes.
The special page vector table is mapped to FFE0016 to FFFDB16. If the starting addresses of subroutines
or the destination addresses of jumps are stored here, subroutine call instructions and jump instructions
can be used as 2-byte instructions, reducing the number of program steps.
Figure 1.4.1. Memory map
SFR area
For details, see
Figures 1.7.1 to 1.7.3
Internal RAM area
Internal ROM area
Reset
Watchdog timer
Single step
Address match
BRK instruction
Overflow
Undefined instruction
Special page
vector table
0000016
0040016
XXXXX16
YYYYY16
FFFFF16
FFFDC16
FFE0016
DBC
NMI
ROM size
FA00016
24K bytes
Address YYYYY16
32K bytes
64K bytes
128K bytes
F800016
F000016
E000016
RAM size
009FF16
1.5K bytes
Address XXXXX16
2K bytes
4K bytes
10K bytes
00BFF16
013FF16
02BFF16
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相关代理商/技术参数 |
参数描述 |
|---|---|
| M30222 | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M30222FG | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M30222FGFP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M30222FGGP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M30222FG-XXXFP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
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