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参数资料
| 型号： | M34250E2-XXXFP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 4-BIT, OTPROM, 4.4 MHz, MICROCONTROLLER, PDSO20 |
| 封装： | PLASTIC, SOP-20 |
| 文件页数： | 9/61页 |
| 文件大小： | 654K |
| 代理商： | M34250E2-XXXFP |
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14
MITSUBISHI MICROCOMPUTERS
4250 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
Fig. 10 ROM map of M34250M2
Fig. 11 Page 1 (addresses 008016 to 00FF16) structure
Fig. 12 RAM map
A part of page 1 (addresses 008016 to 00FF16) is reserved for
interrupt addresses (Figure 11). When an interrupt occurs, the
address (interrupt address) corresponding to each interrupt is
set in the program counter, and the instruction at the interrupt
address is executed. When using an interrupt service routine,
write the instruction generating the branch to that routine at an
interrupt address.
Page 2 (addresses 010016 to 017F16) is the special page for
subroutine calls. Subroutines written in this page can be called
from any page with the 1-word instruction (BM). Subroutines
extending from page 2 to another page can also be called with
the BM instruction when it starts on page 2.
ROM pattern (bits 7 to 0) of all addresses can be used as data
areas with the TABP p instruction.
DATA MEMORY (RAM)
1 word of RAM is composed of 4 bits, but 1-bit manipulation
(with the SB j, RB j, and SZB j instructions) is enabled for the
entire memory area. A RAM address is specified by a data
pointer. The data pointer consists of registers X and Y. Set a
value to the data pointer certainly when executing an instruction
to access RAM.
Table 2 shows the RAM size. Figure 12 shows the RAM map.
Table 2 RAM size
Product
M34250M2
M34250E2
RAM size
64 words ! 4 bits (256 bits)
0
876
54321
Interrupt address page
000016
008016
017F16
Subroutine special page
007F16
00FF16
010016
07FF16
018016
Page 1
Page 2
Page 0
Page 3
Page 15
0
8765
4321
External interrupt address
Timer 1 interrupt address
008016
008216
00FF16
Register
Y
Register X
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
01
RAM 64 words ! 4 bits (256 bits)
23
64 words
PROGRAM MEMORY (ROM)
The program memory is a mask ROM. 1 word of ROM is
composed of 9 bits. ROM is separated every 128 words by the
unit of page (addresses 0 to 127). Table 1 shows the ROM size
and pages. Figure 10 shows the ROM map of M34250M2.
Table 1 ROM size and pages
Product
M34250M2
M34250E2
ROM size (! 9 bits)
2048 words
Pages
16 (0 to 15)
相关PDF资料 |
PDF描述 |
|---|---|
| M34250M2-XXXFP | 4-BIT, MROM, 4.4 MHz, MICROCONTROLLER, PDSO20 |
| M34250M2-XXXFP | 4-BIT, MROM, 4.4 MHz, MICROCONTROLLER, PDSO20 |
| M34280M1-XXXFP | 4-BIT, MROM, 4 MHz, MICROCONTROLLER, PDSO20 |
| M34280M1-XXXGP | 4-BIT, MROM, 4 MHz, MICROCONTROLLER, PDSO20 |
| M34280E1GP | 4-BIT, OTPROM, 4 MHz, MICROCONTROLLER, PDSO20 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| M34250M2 | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34250M2-066FP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34250M2-086FP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34250M2-099FP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34250M2-116FP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
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