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參數(shù)資料
| 型號(hào)： | TMP86FH09NG |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, FLASH, 16 MHz, MICROCONTROLLER, PDIP32 |
| 封裝： | 0.400 INCH, 1.78 MM PITCH, LEAD FREE, PLASTIC, SDIP-32 |
| 文件頁(yè)數(shù)： | 98/154頁(yè) |
| 文件大?。?/td> | 1433K |
| 代理商： | TMP86FH09NG |
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Page 38
3. Interrupt Control Circuit
3.4 Interrupt Sequence
TMP86CH09NG
Note 1: a: Return address entry address, b: Entry address, c: Address which RETI instruction is stored
Note 2: On condition that interrupt is enabled, it takes 38/fc [s] or 38/fs [s] at maximum (If the interrupt latch is set at the first
machine cycle on 10 cycle instruction) to start interrupt acceptance processing since its interrupt latch is set.
Figure 3-1 Timing Chart of Interrupt Acceptance/Return Interrupt Instruction
Example: Correspondence between vector table address for INTTBT and the entry address of the interrupt
service program
A maskable interrupt is not accepted until the IMF is set to “1” even if the maskable interrupt higher than the
level of current servicing interrupt is requested.
In order to utilize nested interrupt service, the IMF is set to “1” in the interrupt service program. In this case,
acceptable interrupt sources are selectively enabled by the individual interrupt enable flags.
To avoid overloaded nesting, clear the individual interrupt enable flag whose interrupt is currently serviced,
before setting IMF to “1”. As for non-maskable interrupt, keep interrupt service shorten compared with length
between interrupt requests; otherwise the status cannot be recovered as non-maskable interrupt would simply
nested.
3.4.2 Saving/restoring general-purpose registers
During interrupt acceptance processing, the program counter (PC) and the program status word (PSW,
includes IMF) are automatically saved on the stack, but the accumulator and others are not. These registers are
saved by software if necessary. When multiple interrupt services are nested, it is also necessary to avoid using
the same data memory area for saving registers. The following methods are used to save/restore the general-
purpose registers.
3.4.2.1 Using PUSH and POP instructions
If only a specific register is saved or interrupts of the same source are nested, general-purpose registers
can be saved/restored using the PUSH/POP instructions.
a
b
a
c + 1
Execute
instruction
SP
PC
Execute
instruction
n
2
n - 3
n
2n 1
n
1
n
a + 2
a + 1
c + 2
b + 3
b + 2
b + 1
a + 1
a
1
Execute RETI instruction
Interrupt acceptance
Execute
instruction
Interrupt service task
1-machine cycle
Interrupt
request
Interrupt
latch (IL)
IMF
D2H
03H
D203H
D204H
06H
Vector table address
Entry address
0FH
Vector
Interrupt
service
program
FFF2H
FFF3H
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| TMP86FH09NG(ZM) | 功能描述:8位微控制器 -MCU TLCS870/C 16K FLASH RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| TMP86FH12MG | 制造商:Toshiba America Electronic Components 功能描述:MCU 8BIT TLCS-870 CISC 16KB FLASH 5V 30SSOP - Bulk 制造商:Toshiba America Electronic Components 功能描述:8BIT MCU 16K FLASH 512B RAM 86FH12 |
| TMP86FH12MG(Z) | 功能描述:8位微控制器 -MCU 16k Flash MCU RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| TMP86FH46ANG | 制造商:Toshiba America Electronic Components 功能描述:MCU 8BIT TLCS-870 CISC 16KB FLASH 5V 42PIN SDIP - Bulk |
| TMP86FH46ANG(Z) | 功能描述:8位微控制器 -MCU 16K Flash MCU RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
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