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PIC16F72/ML 数据表(PDF) 67 Page - Microchip Technology |
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PIC16F72/ML 数据表(HTML) 67 Page - Microchip Technology |
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67 / 136 page  2002 Microchip Technology Inc. DS39597B-page 65 PIC16F72 TABLE 11-3: TIME-OUT IN VARIOUS SITUATIONS TABLE 11-4: STATUS BITS AND THEIR SIGNIFICANCE TABLE 11-5: RESET CONDITION FOR SPECIAL REGISTERS Oscillator Configuration Power-up Brown-out Wake-up from SLEEP PWRTEN = 0 PWRTEN = 1 XT, HS, LP 72 ms + 1024 TOSC 1024 TOSC 72 ms + 1024 TOSC 1024 TOSC RC 72 ms — 72 ms — POR (PCON<1>) BOR (PCON<0>) TO (STATUS<4>) PD (STATUS<3>) Significance 0x 1 1 Power-on Reset 0x 0 x Illegal, TO is set on POR 0x x 0 Illegal, PD is set on POR u0 1 1 Brown-out Reset uu 0 1 WDT Reset uu 0 0 WDT Wake-up uu u u MCLR Reset during normal operation uu 1 0 MCLR Reset during SLEEP or interrupt wake-up from SLEEP Condition Program Counter STATUS Register PCON Register Power-on Reset 000h 0001 1xxx ---- --0x MCLR Reset during normal operation 000h 000u uuuu ---- --uu MCLR Reset during SLEEP 000h 0001 0uuu ---- --uu WDT Reset 000h 0000 1uuu ---- --uu WDT Wake-up PC + 1 uuu0 0uuu ---- --uu Brown-out Reset 000h 0001 1uuu ---- --u0 Interrupt Wake-up from SLEEP PC + 1(1) uuu1 0uuu ---- --uu Legend: u = unchanged, x = unknown, - = unimplemented bit, read as '0'. Note 1: When the wake-up is due to an interrupt and the GIE bit is set, the PC is loaded with the interrupt vector (0004h). |
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