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參數(shù)資料
| 型號： | M37481MXT |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| 中文描述： | 單芯片8位CMOS微機 |
| 文件頁數(shù)： | 17/97頁 |
| 文件大小： | 1076K |
| 代理商： | M37481MXT |
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17
MITSUBISHI MICROCOMPUTERS
7480/7481 GROUP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
PRELIMINARY
Notice: This is not a final specification.
Some parametric limits are subject to change.
Interrupts
Interrupts are vectored interrupts, and they can be caused by 14
different sources: 5 external sources, 8 internal sources, and 1
software source.
(1) Interrupt Control
All interrupts, except the BRK instruction interrupt, have an inter-
rupt request bit and an interrupt enable bit. Additionally, a global
interrupt disable flag affects them.
When the interrupt enable bit and the interrupt request bit are set
to "1" and the interrupt disable flag is set to "0", an interrupt is ac-
cepted.
The interrupt request bits can be cleared by the program but can-
not be set. The interrupt enable bit can be set and cleared by the
program.
The reset and BRK instruction interrupt can never be disabled.
Other interrupts are disabled when the interrupt disable flag is set.
(2) Interrupt Operation
When an interrupt request is accepted:
1. The contents of the program counter and the processor status
register are automatically pushed into the stack.
2. The interrupt disable flag is set and the interrupt request bit is
cleared.
3. The interrupt jump destination address is read into the program
counter.
I
Notes
When the active edge of an external interrupt (INT
0
, INT
1
,
CNTR
0
, CNTR
1
) is set, the interrupt request bit may also be set.
Therefore, disable the external interrupt and set the edge polar-
ity selection register. Then clear the interrupt request bit and
accept the external interrupt.
Input a trigger width over 250 ns to the INT
0
/INT
1
pin.
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| M37481RSS | 功能描述:EPROM MCU/8BIT CMOS EMULATION CH RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 配件 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program RoHS指令信息:IButton RoHS Compliance Plan 標(biāo)準(zhǔn)包裝:1 系列:- 附件類型:USB 至 1-Wire? RJ11 適配器 適用于相關(guān)產(chǎn)品:1-Wire? 設(shè)備 產(chǎn)品目錄頁面:1429 (CN2011-ZH PDF) |
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