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參數(shù)資料
| 型號(hào)： | ST10F269DIETR |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 16-BIT, FLASH, 32 MHz, MICROCONTROLLER, UUC |
| 封裝： | DIE |
| 文件頁(yè)數(shù)： | 14/161頁(yè) |
| 文件大?。?/td> | 1595K |
| 代理商： | ST10F269DIETR |
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ST10F269-T3
110/160
The short hardware reset ends and the MCU restarts.To be processed as a short hardware reset, the
external RSTIN signal must last a maximum of 1038 TCL (4 TCL + 10 TCL + 1024 TCL). The system
configuration is latched from PORT0 after a duration of 8 TCL / 4 CPU clocks (6 TCL / 3 CPU clocks if PLL
is bypassed) and in case of external fetch, ALE, RD and R/W pins are driven to their inactive level.
Program execution starts from memory location 00'0000h in code segment 0. This starting location will
typically point to the general initialization routine. Timings of synchronous reset sequence are
summarized in Figure 57. Refer to Table 29 for PORT0 latched configuration.
Note
- If the RSTIN pin level is sampled low, the reset sequence is extended until RSTIN level becomes
high leading to a long hardware reset (synchronous or asynchronous reset) because RSTIN
signal duration has lasted longer than 1040TCL.
- If the VRPD voltage has dropped below the RPD pin threshold, the reset is processed as an
asynchronous reset.
Figure 57 : Synchronous Warm Reset Sequence External Fetch (4 TCL < RSTIN pulse < 1038 TCL)
Note
1) RSTIN assertion can be released there.
2) Maximum internal synchronization is 6 CPU cycles (12 TCL).
3) RSTIN pin is pulled low if bit BDRSTEN (bit 3 of SYSCON register) was previously set by software. Bit BDRSTEN is cleared after
reset.
4) RSTIN rising edge to internal latch of PORT0 is 3 CPU clock cycles (6 TCL) if the PLL is bypassed and the prescaler is on
(fCPU =fXTAL / 2), else it is 4 CPU clock cycles (8 TCL).
5) If during the reset condition (RSTIN low), VRPD voltage drops below the threshold voltage (typically 2.5V for 5V operation), the
ST10 reset circuitry disables the bidirectional reset function and RSTIN pin is no more pulled low.
18.3 - Software Reset
The reset sequence can be triggered at any time using the protected instruction SRST (software reset).
This instruction can be executed deliberately within a program, for example to leave bootstrap loader
mode, or upon a hardware trap that reveals a system failure.
Upon execution of the SRST instruction, the internal reset sequence (1024 TCL) is started. The
microcontroller behavior is the same as for a short hardware reset, except that only P0.12...P0.6 bits are
latched at the end of the reset sequence, while previously latched values of P0.5...P0.2 are cleared.
18.4 - Watchdog Timer Reset
When the watchdog timer is not disabled during the initialization or when it is not regularly serviced during
program execution it will overflow and it will trigger the reset sequence.
CPU Clock
RSTIN
RPD
RSTOUT
ALE
PORT0
1st Instr.
Latching point of PORT0
for system start-up configuration
6 or 8 TCL4)
4 TCL 10 TCL
2)
min.
1024 TCL
1)
Reset Configuration
If VRPD > 2.5V Asynchronous
200
A Discharge
5)
RD
4
3
2
1
5
6789
Reset is not entered.
Internal reset signal
Internally pulled low 3)
5 TCL
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相關(guān)代理商/技術(shù)參數(shù) |
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| ST10F269-DP | 功能描述:16位微控制器 - MCU 16-bit MCU MAC 256 Kbyte Flash 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(shí)鐘頻率:24 MHz 程序存儲(chǔ)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 |
| ST10F269-DPB | 功能描述:16位微控制器 - MCU 16-bit MCU MAC 256 Kbyte Flash 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(shí)鐘頻率:24 MHz 程序存儲(chǔ)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 |
| ST10F269-DPR | 功能描述:16位微控制器 - MCU 16Bit MCU 256K BYTE FLASH,12K BYTE RAM 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(shí)鐘頻率:24 MHz 程序存儲(chǔ)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 |
| ST10F269DT3 | 功能描述:16位微控制器 - MCU 16Bit MCU 256K BYTE FLASH,12K BYTE RAM 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(shí)鐘頻率:24 MHz 程序存儲(chǔ)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 |
| ST10F269DTR3 | 功能描述:16位微控制器 - MCU 16-bit MCU MAC unit 256 Kbyte Flash 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(shí)鐘頻率:24 MHz 程序存儲(chǔ)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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