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參數(shù)資料
| 型號(hào)： | UPD17073GB |
| 廠商： | NEC Corp. |
| 英文描述： | 4-BIT SINGLE-CHIP MICROCONTROLLER WITH HARDWARE FOR DIGITAL TUNING SYSTEM |
| 中文描述： | 4位單芯片的數(shù)字調(diào)諧系統(tǒng)硬件單片機(jī) |
| 文件頁(yè)數(shù)： | 74/226頁(yè) |
| 文件大小： | 1250K |
| 代理商： | UPD17073GB |
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μ
PD17072,17073
74
11.6.2 Timing to accept interrupt
Figure 11-8 is a timing chart illustrating how interrupts are accepted.
(1)
in this figure illustrate how one type of interrupt is accepted.
(a)
in (1) indicates the case where the interrupt request flag is set to “1” last, while (b) shows the case where
the interrupt enable flag is set to “1” last.
In either case, the interrupt is accepted after all the interrupt request flag, interrupt enable flip-flop, and interrupt
enable flag have been set.
If it is during the first instruction cycle of the “MOVT DBF, @AR” instruction or an instruction with the skip condition
satisfied that sets the last flag or flip-flop to “1”, the interrupt is accepted during the second instruction cycle of the
“MOVT DBF, @AR” instruction or when the skipped instruction (“NOP”) has been executed.
The interrupt enable flip-flop is set in the instruction cycle next to the one in which the “EI” instruction is executed.
(2) in Figure 11-8 shows the timing chart where two or more interrupts are used.
When using two or more interrupts, the interrupt given the highest hardware priority at that time is accepted if all
the interrupt enable flags are set. However, the hardware priority can be changed by manipulating the interrupt enable
flag through program.
“Interrupt cycle” in Figure 11-8 is a special cycle in which the interrupt request flag is clear, a vector address is
specified, and the contents of the program counter are saved after an interrupt has been accepted, and lasts for 53.3
μ
s, (normal operation) or one instruction execution time.
For details, refer to
11.7 Operations after Accepting Interrupt
.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| UPD17073 | FILTER BAND PASS 5.8GHZ SMD |
| UPD17072GB | 4-BIT SINGLE-CHIP MICROCONTROLLER WITH HARDWARE FOR DIGITAL TUNING SYSTEM |
| UPD17215CT | 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
| UPD17217GT | 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
| UPD17218 | 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| UPD17073GB-XXX-1A7 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller |
| UPD17073GB-XXX-9EU | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller |
| UPD1708AG-011 | 制造商:NEC 制造商全稱:NEC 功能描述:PLL FREQUENCY SYNTHESIZER AND CONTROLLER FOR FM/MW/LW TUNER |
| UPD1708AG-011-00 | 制造商:NEC 制造商全稱:NEC 功能描述:PLL FREQUENCY SYNTHESIZER AND CONTROLLER FOR FM/MW/LW TUNER |
| UPD1708AG-020-00 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:AM/FM Receiver Circuit |
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