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參數(shù)資料
| 型號： | MAXQ7666BATM+ |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | RISC MICROCONTROLLER, QCC48 |
| 封裝： | 7 X 7 MM, ROHS COMPLAINT, TQFN-48 |
| 文件頁數(shù)： | 35/49頁 |
| 文件大?。?/td> | 2130K |
| 代理商： | MAXQ7666BATM+ |
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MAXQ7666
16-Bit, RISC, Microcontroller-Based,
Smart Data-Acquisition System
40
_______________________________________________________________________________________
Interrupts
Multiple interrupt sources quickly respond to internal
and external events. The MAXQ architecture uses a sin-
gle interrupt vector (IV), single interrupt-service routine
(ISR) design. Enable interrupts globally, individually, or
by module. When an interrupt condition occurs, its indi-
vidual flag is set, even if the interrupt source is disabled
at the local, module, or global level. Clear interrupt
flags within the user-interrupt routine to avoid repeated
false interrupts from the same source. Application soft-
ware must ensure a delay between the write to the flag
and the RETI instruction to allow time for the interrupt
hardware to remove the internal interrupt condition.
Asynchronous interrupt flags require a one-instruction
delay and synchronous interrupt flags require a two-
instruction delay.
When an enabled interrupt is detected, software jumps
to a user-programmable interrupt vector location. The
IV register defaults to 0000h on reset or power-up, so if
it is not changed to a different address, the user pro-
gram must determine whether a jump to 0000h came
from a reset or interrupt source.
Once software control transfers to the ISR, use the
interrupt identification register (IIR) to determine if a
system register or peripheral register was the source of
the interrupt. The specified module can then be interro-
gated for the specific interrupt source and software can
take appropriate action. The following interrupt sources
are available.
Watchdog interrupt
External interrupts 0 to 7
Serial port 0 receive and transmit interrupts
Timer 0 low compare, low overflow, capture/compare,
and overflow interrupts
Timer 1 low compare, low overflow, capture/compare,
and overflow interrupts
Timer 2 low compare, low overflow, and overflow
interrupts
CAN0 receive and transmit interrupts and a change
in CAN0 status register interrupt
ADC data ready and overrun interrupts
Digital and I/O voltage brownout interrupts
Crystal oscillator failure interrupt
Reset Sources
Several reset sources are provided for C control.
Although code execution is halted in the reset state, the
crystal oscillator, and the internal RC oscillator continue
to oscillate. The crystal oscillator is turned off by a POR,
but not by other reset sources. Internal resets such as
the power-on and watchdog resets assert the
RESET
output low.
Power-On Reset (POR)
An internal POR circuit enhances system reliability. This
circuit forces the device to perform a POR whenever a
rising voltage on DVDD climbs above the POR thresh-
old level of 2.7V. At this point the following events
occur:
All registers and circuits enter the default state
The POR flag (WDCN.POR) is set to indicate if the
source of the reset was a loss of power
The internal RC oscillator becomes the clock source
Code execution begins at location 8000h
Watchdog Timer Reset
The watchdog timer functions are described in the
MAXQ7665/MAXQ7666 User’s Guide. Execution resumes
at location 8000h following a watchdog timer reset.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAXQ7666BATM+ | 功能描述:16位微控制器 - MCU RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時鐘頻率:24 MHz 程序存儲器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風(fēng)格:SMD/SMT |
| MAXQ7666BATM+T | 功能描述:16位微控制器 - MCU RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時鐘頻率:24 MHz 程序存儲器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風(fēng)格:SMD/SMT |
| MAXQ7667 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:16-Bit, RISC, Microcontroller-Based, Ultrasonic Distance-Measuring System |
| MAXQ7667AACM/V+ | 功能描述:16位微控制器 - MCU 16-Bit RISC MCU-Bsd Ultrasonic DMS RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時鐘頻率:24 MHz 程序存儲器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風(fēng)格:SMD/SMT |
| MAXQ7667AACM/V+T | 功能描述:16位微控制器 - MCU 16-Bit RISC MCU-Bsd Ultrasonic DMS RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時鐘頻率:24 MHz 程序存儲器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風(fēng)格:SMD/SMT |
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