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参数资料
| 型号： | M30101F3FP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 16-BIT, FLASH, 16 MHz, MICROCONTROLLER, PDSO42 |
| 封装： | PLASTIC, SSOP-42 |
| 文件页数： | 11/125页 |
| 文件大小： | 1608K |
| 代理商： | M30101F3FP |
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Tentative Specifications REV.C1
Specifications in this manual are tentative and subject to change.
Mitsubishi microcomputers
M30100/M30101/M30102 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Usage precaution
108
(4) Rewriting the Interrupt Control Register
When rewriting the Interrupt Control Register, do it at a point where it does not generate an interrupt
request for that register. If there is a possibility that an interrupt may occur, disable the interrupt before
rewriting. Examples are shown below.
Example 1:
INT_SWITCH1:
FCLR
I
; Disable interrupts.
AND.B
#00h, 0055h
; Clear T1IC int. priority level and int. request bit.
NOP
;
NOP
FSET
I
; Enable interrupts.
Example 2:
INT_SWITCH2:
FCLR
I
; Disable interrupts.
AND.B
#00h, 0055h
; Clear T1IC int. priority level and int. request bit.
MOV.W
MEM, R0
; Dummy read.
FSET
I
; Enable interrupts.
Example 3:
INT_SWITCH3:
PUSHC
FLG
; Push Flag register onto stack
FCLR
I
; Disable interrupts.
AND.B
#00h, 0055h
; Clear T1IC int. priority level and int. request bit.
POPC
FLG
; Enable interrupts.
Note: The reason why two NOP instructions or dummy read were inserted before the FSET I for ex. 1 &
2 is to prevent interrupt enable flag from being set, due to the effects of instruction queue, before
the rewritten value of the interrupt control register takes effect.
When an instruction to rewrite the interrupt control register is executed while the interrupt is disabled,
depending on the instruction used for rewriting, there are times the interrupt request bit is not set even if
an interrupt request for that register has been generated. If this creates a problem, please use any of the
instructions below to rewrite the register.
Instructions : AND, OR, BCLR, BSET
Noise
(1) Bypass Capacitor between VCC and VSS Pins
Insert a bypass capacitor (at least 0.1
F) between VCC and VSS pins as noise and latch-up counter-
measures. In addition, make sure that connecting lines are the shortest and widest possible.
(2) Port Control Registers Data Read Error
During severe noise testing, mainly power supply system noise, and introduction of external noise, the
data of port related registers may changed. As a firmware countermeasure, it is recommended to peri-
odically re-set the port registers, port direction registers and pull-up control registers. However, you
should fully examine before introducing the re-set routine as conflicts may be created between this re-
set routine and interrupt routines (i. e. ports are switched during interrupts).
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相关代理商/技术参数 |
参数描述 |
|---|---|
| M30102 | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M30102T-PTC | 制造商:Renesas Electronics Corporation 功能描述:DEV 48PIN .5MM QFP CNVTR FOR M30100T-PRB - Bulk |
| M30-1050046 | 功能描述:集管和线壳 FML CRIMP CONTACT 1.25MM,AWG 26-30, RL RoHS:否 产品种类:1.0MM Rectangular Connectors 产品类型:Headers - Pin Strip 系列:DF50 触点类型:Pin (Male) 节距:1 mm 位置/触点数量:16 排数:1 安装风格:SMD/SMT 安装角:Right 端接类型:Solder 外壳材料:Liquid Crystal Polymer (LCP) 触点材料:Brass 触点电镀:Gold 制造商:Hirose Connector |
| M30-1060046 | 功能描述:集管和线壳 FML CRIMP CONTACT 1.25MM,AWG 26-30,LSE RoHS:否 产品种类:1.0MM Rectangular Connectors 产品类型:Headers - Pin Strip 系列:DF50 触点类型:Pin (Male) 节距:1 mm 位置/触点数量:16 排数:1 安装风格:SMD/SMT 安装角:Right 端接类型:Solder 外壳材料:Liquid Crystal Polymer (LCP) 触点材料:Brass 触点电镀:Gold 制造商:Hirose Connector |
| M3010A | 制造商:Honeywell Sensing and Control 功能描述:GENERAL MARKET VRS |
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