 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
PIC16CR74E/SP Datasheet(PDF) 97 Page - Microchip Technology |
|
|
|||||||||||||||||||||||||||||
PIC16CR74E/SP Datasheet(HTML) 97 Page - Microchip Technology |
|
|
97 / 172 page  © 2007 Microchip Technology Inc. DS21993C-page 95 PIC16CR7X 12.10 Power Control/Status Register (PCON) The Power Control/Status Register, PCON, has two bits to indicate the type of Reset that last occurred. Bit 0 is Brown-out Reset Status bit, BOR. Bit BOR is unknown on a Power-on Reset. It must then be set by the user and checked on subsequent Resets to see if bit BOR cleared, indicating a Brown-out Reset occurred. When the Brown-out Reset is disabled, the state of the BOR bit is unpredictable. Bit 1 is POR (Power-on Reset Status bit). It is cleared on a Power-on Reset and unaffected otherwise. The user must set this bit following a Power-on Reset. TABLE 12-3: TIME-OUT IN VARIOUS SITUATIONS TABLE 12-4: STATUS BITS AND THEIR SIGNIFICANCE TABLE 12-5: RESET CONDITION FOR SPECIAL REGISTERS Oscillator Configuration Power-up Brown-out Wake-up from Sleep PWRTE = 0 PWRTE = 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 10 1 1 Brown-out Reset 11 0 1 WDT Reset 11 0 0 WDT Wake-up 11 u u MCLR Reset during normal operation 11 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). |
|
Link URL |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link to Datasheet | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
