參數(shù)資料
型號(hào): M306N5MCT-XXXGP
元件分類: 微控制器/微處理器
英文描述: 16-BIT, MROM, 20 MHz, MICROCONTROLLER, PQFP100
封裝: 14 X 14 MM, 0.50 MM PITCH, PLASTIC, LQFP-100
文件頁(yè)數(shù): 24/63頁(yè)
文件大?。?/td> 825K
代理商: M306N5MCT-XXXGP
Precautions for Interrupts
Mitsubishi microcomputers
M16C / 62A Group (80-pin)
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
55
______
Figure 1.10.13. Switching condition of INT interrupt request
Set the polarity select bit
Clear the interrupt request bit to “0”
Set the interrupt priority level to level 1 to 7
(Enable the accepting of INTi interrupt request)
Set the interrupt priority level to level 0
(Disable INTi interrupt)
Clear the interrupt enable flag to “0”
(Disable interrupt)
Set the interrupt enable flag to “1”
(Enable interrupt)
Example 1:
INT_SWITCH1:
FCLR
I
; Disable interrupts.
AND.B
#00h, 0055h
; Clear TA0IC int. priority level and int. request bit.
NOP
; Four NOP instructions are required when using HOLD function.
NOP
FSET
I
; Enable interrupts.
Example 2:
INT_SWITCH2:
FCLR
I
; Disable interrupts.
AND.B
#00h, 0055h
; Clear TA0IC 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 TA0IC int. priority level and int. request bit.
POPC
FLG
; Enable interrupts.
The reason why two NOP instructions (four when using the HOLD function) or dummy read are inserted
before FSET I in Examples 1 and 2 is to prevent the interrupt enable flag I from being set before the
interrupt control register is rewritten due to effects of the instruction queue.
(5) Rewrite the interrupt control register
To rewrite the interrupt control register, do so at a point that does not generate the interrupt request for
that register. If there is possibility of the interrupt request occur, rewrite the interrupt control register after
the interrupt is disabled. The program examples are described as follow:
When a instruction to rewrite the interrupt control register is executed but the interrupt is disabled, the
interrupt request bit is not set sometimes even if the interrupt request for that register has been gener-
ated. This will depend on the instruction. If this creates problems, use the below instructions to change
the register.
Instructions : AND, OR, BCLR, BSET
相關(guān)PDF資料
PDF描述
M306V0ME-XXXFP 16-BIT, MROM, MICROCONTROLLER, PQFP100
M306V0EEFP 16-BIT, OTPROM, MICROCONTROLLER, PQFP100
M306V2ME-XXXFP 16-BIT, MROM, 10 MHz, MICROCONTROLLER, PQFP100
M306V2EEFP 16-BIT, OTPROM, 10 MHz, MICROCONTROLLER, PQFP100
M306V2EEFS 16-BIT, UVPROM, 10 MHz, MICROCONTROLLER, CQCC100
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M306N5MCV-XXXFP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:Renesas MCU
M306N5MCV-XXXGP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:Renesas MCU
M306N5MC-XXXGP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:Renesas MCU
M306NKFHGP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:Renesas MCU
M306NKFHGP#U3 功能描述:IC M16C MCU FLASH 384K 100LQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:M16C™ M16C/60/6NK 標(biāo)準(zhǔn)包裝:1 系列:AVR® ATmega 核心處理器:AVR 芯體尺寸:8-位 速度:16MHz 連通性:I²C,SPI,UART/USART 外圍設(shè)備:欠壓檢測(cè)/復(fù)位,POR,PWM,WDT 輸入/輸出數(shù):32 程序存儲(chǔ)器容量:32KB(16K x 16) 程序存儲(chǔ)器類型:閃存 EEPROM 大小:1K x 8 RAM 容量:2K x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 8x10b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 125°C 封裝/外殼:44-TQFP 包裝:剪切帶 (CT) 其它名稱:ATMEGA324P-B15AZCT