參數(shù)資料
型號： SAK-TC1765T-L40EB
廠商： INFINEON TECHNOLOGIES AG
元件分類： 微控制器/微處理器
英文描述： 32-BIT, MROM, 40 MHz, MICROCONTROLLER, PBGA260
封裝： PLASTIC, LBGA-260
文件頁數(shù)： 42/88頁
文件大?。?/td> 1274K
代理商： SAK-TC1765T-L40EB
TC1765
Data Sheet
43
V1.2, 2002-12
Preliminary
Watchdog Timer
The Watchdog Timer (WDT) provides a highly reliable and secure way to detect and
recover from software or hardware failure. The WDT helps to abort an accidental
malfunction of the TC1765 in a user-specified time period. When enabled, the WDT will
cause the TC1765 system to be reset if the WDT is not serviced within a user-
programmable time period. The CPU must service the WDT within this time interval to
prevent the WDT from causing a TC1765 system reset. Hence, routine service of the
WDT confirms that the system is functioning properly.
In addition to this standard “Watchdog” function, the WDT incorporates the EndInit
feature and monitors its modifications. A system-wide line is connected to the ENDINIT
bit implemented in a WDT control register, serving as an additional write-protection for
critical registers (besides Supervisor Mode protection).
A further enhancement in the TC1765’s Watchdog Timer is its reset prewarning
operation. Instead of immediately resetting the device on the detection of an error, as
known from standard Watchdogs, the WDT first issues an Non-maskable Interrupt (NMI)
to the CPU before finally resetting the device at a specified time period later. This gives
the CPU a chance to save system state to memory for later examination of the cause of
the malfunction, an important aid in debugging.
Features:
16-bit Watchdog counter
Selectable input frequency:
fSYS/256 or fSYS/16384
16-bit user-definable reload value for normal Watchdog operation, fixed reload value
for Time-Out and Prewarning Modes
Incorporation of the ENDINIT bit and monitoring of its modifications
Sophisticated password access mechanism with fixed and user-definable password
fields
Proper access always requires two write accesses. The time between the two
accesses is monitored by the WDT and limited.
Access Error Detection: Invalid password (during first access) or invalid guard bits
(during second access) trigger the Watchdog reset generation.
Overflow Error Detection: An overflow of the counter triggers the Watchdog reset
generation.
Watchdog function can be disabled; access protection and ENDINIT monitor function
remain enabled.
Double Reset Detection: If a Watchdog induced reset occurs twice without a proper
access to its control register in between, a severe system malfunction is assumed and
the TC1765 is held in reset until a power-on reset. This prevents the device from being
periodically reset if, for instance, connection to the external memory has been lost
such that even system initialization could not be performed.
相關(guān)PDF資料
PDF描述
SAK-TC1767-256F133HL 32-BIT, FLASH, 133 MHz, RISC MICROCONTROLLER, PQFP176
SAK-TC1782-320F180HL 32-BIT, FLASH, 180 MHz, RISC MICROCONTROLLER, PQFP176
SAK-XC164CS-32F40F 16-BIT, FLASH, 40 MHz, RISC MICROCONTROLLER, PQFP100
SAK-XC164CS-32F20F 16-BIT, FLASH, 20 MHz, RISC MICROCONTROLLER, PQFP100
SAK-XC2267M-104F80LAA 32-BIT, FLASH, 80 MHz, RISC MICROCONTROLLER, PQFP100
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SAK-TC1766-192F80HL 制造商:Infineon Technologies AG 功能描述:Tricore,32 bit,1.5MB Flash,80MHz,USB
SAK-TC1766-192F80HL BD 功能描述:32位微控制器 - MCU 32BIT SNGL CHIP 3.3V 80MHz Flash RoHS:否 制造商:Texas Instruments 核心:C28x 處理器系列:TMS320F28x 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:90 MHz 程序存儲器大小:64 KB 數(shù)據(jù) RAM 大小:26 KB 片上 ADC:Yes 工作電源電壓:2.97 V to 3.63 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:LQFP-80 安裝風(fēng)格:SMD/SMT
SAK-TC1766-192F80HL BDTR 制造商:Infineon Technologies AG 功能描述:
SAKTC1766192F80HLBBX 制造商:Infineon Technologies AG 功能描述:MCU 32-bit TC17xx TriCore RISC 1536KB Flash 1.5V/3.3V 176-Pin LQFP
SAK-TC1766-192F80HLBD 制造商:Infineon Technologies AG 功能描述:
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*