- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄98146 > ST7FLCD1G9M1 (STMICROELECTRONICS) 8-BIT, FLASH, 24 MHz, MICROCONTROLLER, PDSO28 PDF資料下載
參數(shù)資料
| 型號： | ST7FLCD1G9M1 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, FLASH, 24 MHz, MICROCONTROLLER, PDSO28 |
| 封裝： | ROHS COMPLIANT, SO-28 |
| 文件頁數(shù)： | 17/96頁 |
| 文件大?。?/td> | 846K |
| 代理商： | ST7FLCD1G9M1 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁當(dāng)前第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁
Interrupts
ST7FLCD1
4
Interrupts
There are two different methods to interrupt the ST7:
1. a maskable hardware interrupt as listed in Table 7
2. a non-maskable software interrupt (TRAP).
The Interrupt Processing flowchart is shown in Figure 10.
Only enabled maskable interrupts are serviced. However, disabled interrupts are latched and
processed. For an interrupt to be serviced, the PC, X, A and CC registers are saved onto the stack,
the interrupt mask (bit I of the Condition Code Register) is set to prevent additional interrupts. The
Y register is not automatically saved.
The PC is then loaded with the interrupt vector and the interrupt service routine runs (refer to
Table 7 for vector addresses) and ends with the IRET instruction. At the IRET instruction, the
contents of the registers are recovered from the stack and normal processing resumes. Note that
the I bit is then cleared if the corresponding bit stored in the stack is zero.
Though many interrupts can be run simultaneously, an order of priority is defined (see Table 7). The
RESET pin has the highest priority. If the I bit is set, only the TRAP interrupt is enabled. All
interrupts allow the processor to exit the WAIT Low Power mode.
4.1
Software
The software interrupt is the executable TRAP instruction. The interrupt is recognized when the
TRAP instruction is executed, regardless of the state of the I bit. When an interrupt is recognized, it
is serviced according to flowchart described in Figure 10.
Note:
During ICC communication, the TRAP interrupt is reserved.
4.2
External Interrupts (ITA, ITB)
The ITA (PA6), ITB (PA7) pins generate an interrupt when a falling or rising edge occurs on these
pins. These interrupts are enabled by the ITAITE and ITBITE bits (respectively) in the ITRFRE
register, provided that the I bit from the CC register is reset. Each external interrupt has its own
interrupt vector.
4.3
Peripheral Interrupts
The various peripheral devices with interrupts include both Display Data Channels (DDC A and
DDC B), the Infrared Controller (IFR), two 8-bit timers (Timer A and Timer B) and the IC interface.
Different peripheral interrupt flags fetch an interrupt if the I bit from the CC register is reset and the
corresponding Enable bit is set. If any of these conditions is not fulfilled, the interrupt is latched but
not serviced, thus remaining pending.
4.4
Processing
Interrupt flags are located in the status register. The Enable bits are in the control register. When an
enabled interrupt occurs, normal processing is suspended at the end of the current instruction
execution. It is then serviced according to the flowchart shown in Figure 10.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ST7FLIT19BF1U6TR | 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, QCC20 |
| ST7FLITE09Y0M1 | 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDSO16 |
| ST7FLU05MAE | 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDSO8 |
| ST7LNB0V2Y0M6 | 8-BIT, 8 MHz, MICROCONTROLLER, PDSO16 |
| ST7LNB1Y0M6 | 8-BIT, EEPROM, 8 MHz, MICROCONTROLLER, PDSO16 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ST7FLI15BF1U6 | 功能描述:8位微控制器 -MCU 8-Bit MCU w/ Single Volt 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 最大時鐘頻率:50 MHz 程序存儲器大小: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 |
| ST7FLI15BF1U6TR | 功能描述:8位微控制器 -MCU 8 BITS MICROCONTR 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 最大時鐘頻率:50 MHz 程序存儲器大小: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 |
| ST7FLI19BF1M3TR | 功能描述:8位微控制器 -MCU 8 BITS MICROCONTR 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 最大時鐘頻率:50 MHz 程序存儲器大小: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 |
| ST7FLI19BF1U6TR | 功能描述:8位微控制器 -MCU 8-Bit MCU w/ Single Volt 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 最大時鐘頻率:50 MHz 程序存儲器大小: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 |
| ST7FLI19BY1M3TR | 功能描述:8位微控制器 -MCU 8 BITS MICROCONTR 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 最大時鐘頻率:50 MHz 程序存儲器大小: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 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。