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ANSELA 数据表(PDF) 79 Page - Microchip Technology |
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ANSELA 数据表(HTML) 79 Page - Microchip Technology |
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79 / 222 page  2013 Microchip Technology Inc. DS22331A-page 79 MCP19111 12.0 DEVICE CONFIGURATION Device Configuration consists of Configuration Word, Code Protection and Device ID. 12.1 Configuration Word There are several Configuration Word bits that allow different timers to be enabled and memory protection options. These are implemented as Configuration Word at 2007h . Note: The DBGEN bit in Configuration Word is managed automatically by device development tools, including debuggers and programmers. For normal device operation, this bit should be maintained as a '1'. REGISTER 12-1: CONFIG – CONFIGURATION WORD REGISTER R/P-1 U-1 R/P-1 R/P-1 U-1 U-1 DBGEN —WRT1 WRT0 — — bit 13 bit 8 U-1 R/P-1 R/P-1 R/P-1 R/P-1 U-1 U-1 U-1 —CP MCLRE PWRTE WDTE — — — bit 7 bit 0 Legend: R = Readable bit P = Programmable bit U = Unimplemented bit, read as ‘0’ -n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown bit 13 DBGEN: ICD Debug bit 1 = ICD debug mode disabled 0 = ICD debug mode enabled bit 12 Unimplemented: Read as ‘1’ bit 11-10 WRT<1:0>: Flash Program Memory Self Write Enable bit 11 = Write protection off 10 = 000h to 3FFh write protected, 400h to FFFh may be modified by PMCON1 control 01 = 000h to 7FFh write protected, 800h to FFFh may be modified by PMCON1 control 00 = 000h to FFFh write protected, entire program memory is write protected. bit 9-7 Unimplemented: Read as ‘1’ bit 6 CP: Code Protection 1 = Program memory code protection is disabled 0 = Program memory code protection is enabled bit 5 MCLRE: MCLR Pin Function Select 1 =MCLR pin is MCLR function and weak internal pull-up is enabled 0 =MCLR pin is alternate function, MCLR function is internally disabled bit 4 PWRTE: Power-up Timer Enable bit(1) 1 = PWRT disabled 0 = PWRT enabled bit 3 WDTE: Watchdog Timer Enable bit 1 = WDT enabled 0 = WDT disabled bit 2-0 Unimplemented: Read as ‘1’ Note 1: Bit is reserved and not controlled by user. |
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