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PIC16F1459-ESSQTP 数据表(PDF) 79 Page - Microchip Technology |
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PIC16F1459-ESSQTP 数据表(HTML) 79 Page - Microchip Technology |
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79 / 418 page ![]() 2012 Microchip Technology Inc. Preliminary DS41639A-page 79 PIC16(L)F1454/5/9 6.0 RESETS There are multiple ways to reset this device: • Power-on Reset (POR) • Brown-out Reset (BOR) • Low-Power Brown-out Reset (LPBOR) •MCLR Reset •WDT Reset • RESET instruction • Stack Overflow • Stack Underflow • Programming mode exit To allow VDD to stabilize, an optional Power-up Timer can be enabled to extend the Reset time after a BOR or POR event. A simplified block diagram of the on-chip Reset circuit is shown in Figure 6-1. FIGURE 6-1: SIMPLIFIED BLOCK DIAGRAM OF ON-CHIP RESET CIRCUIT Note 1: See Table 6-1 for BOR active conditions. Device Reset Power-on Reset WDT Time-out Brown-out Reset LPBOR Reset RESET Instruction MCLRE Sleep BOR Active(1) PWRT R Done PWRTE LFINTOSC VDD ICSP™ Programming Mode Exit Stack Pointer MCLR |
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