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PIC16F946-E/MLQTP Datasheet(PDF) 175 Page - Microchip Technology |
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PIC16F946-E/MLQTP Datasheet(HTML) 175 Page - Microchip Technology |
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175 / 330 page  © 2007 Microchip Technology Inc. DS41250F-page 173 PIC16F913/914/916/917/946 TABLE 11-1: REGISTERS ASSOCIATED WITH PROGRAMMABLE LOW-VOLTAGE DETECT REGISTER 11-1: LVDCON: LOW-VOLTAGE DETECT CONTROL REGISTER U-0 U-0 R-0 R/W-0 U-0 R/W-1 R/W-0 R/W-0 — — IRVST(1) LVDEN — LVDL2 LVDL1 LVDL0 bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ -n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown bit 7-6 Unimplemented: Read as ‘0’ bit 5 IRVST: Internal Reference Voltage Stable Status Flag bit(1) 1 = Indicates that the PLVD is stable and PLVD interrupt is reliable 0 = Indicates that the PLVD is not stable and PLVD interrupt must not be enabled bit 4 LVDEN: Low-Voltage Detect Module Enable bit 1 = Enables PLVD Module, powers up PLVD circuit and supporting reference circuitry 0 = Disables PLVD Module, powers down PLVD circuit and supporting reference circuitry bit 3 Unimplemented: Read as ‘0’ bit 2-0 LVDL<2:0>: Low-Voltage Detection Level bits (nominal values)(3) 111 = 4.5V 110 = 4.2V 101 = 4.0V 100 = 2.3V (default) 011 = 2.2V 010 = 2.1V 001 = 2.0V(2) 000 = Reserved Note 1: The IRVST bit is usable only when the HFINTOSC is running. 2: Not tested and below minimum operating conditions. 3: See Section 19.0 “Electrical Specifications”. Name Bit 7Bit 6Bit 5Bit 4Bit 3Bit 2Bit 1Bit 0 Value on POR, BOR Value on all other Resets INTCON GIE PEIE T0IE INTE RBIE T0IF INTF RBIF 0000 000x 0000 000x LVDCON — — IRVST LVDEN — LVDL2 LVDL1 LVDL0 --00 -100 --00 -100 PIE2 OSFIE C2IE C1IE LCDIE —LVDIE — CCP2IE 0000 -0-0 0000 -0-0 PIR2 OSFIF C2IF C1IF LCDIF —LVDIF — CCP2IF 0000 -0-0 0000 -0-0 Legend: x = unknown, - = unimplemented read as ‘0’. Shaded cells are not used by the PLVD module. |
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