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參數資料
| 型號： | M306K9F8LRP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 16-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP144 |
| 封裝： | 16 X 16 MM, 0.40 MM PITCH, PLASTIC, TQFP-144 |
| 文件頁數： | 67/101頁 |
| 文件大小： | 2590K |
| 代理商： | M306K9F8LRP |
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Interrupt
Rev.1.00
Jun 06, 2003
page 50 of 290
M16C/6K9 Group
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.
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 occurrence, 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 inter-
rupt request bit is not set sometimes even if the interrupt request for that register has been generated. This
will depend on the instruction. If this creates problems, use the below instructions to change the register.
Instructions : AND, OR, BCLR, BSET
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相關代理商/技術參數 |
參數描述 |
|---|---|
| M306K9FCLRP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M306K9T2-CPE | 功能描述:M-SUPPORT TOOL RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 內電路編程器、仿真器以及調試器 系列:- 產品變化通告:Development Systems Discontinuation 19/Jul/2010 標準包裝:1 系列:* 類型:* 適用于相關產品:* 所含物品:* |
| M306KAFCLRP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER Description |
| M306N0FG | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M306N0FGT | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
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