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41594B 데이터시트(PDF) 46 Page - Microchip Technology |
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41594B 데이터시트(HTML) 46 Page - Microchip Technology |
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46 / 372 page ![]() PIC12LF1840T48A DS41594B-page 46 Preliminary 2011-2012 Microchip Technology Inc. 4.5 Device ID and Revision ID The memory location 8006h is where the Device ID and Revision ID are stored. The upper nine bits hold the Device ID. The lower five bits hold the Revision ID. See Section 11.5 “User ID, Device ID and Configuration Word Access” for more information on accessing these memory locations. Development tools, such as device programmers and debuggers, may be used to read the Device ID and Revision ID. REGISTER 4-3: DEVICEID: DEVICE ID REGISTER(1) R RRRR RR DEV8 DEV7 DEV6 DEV5 DEV4 DEV3 DEV2 bit 13 bit 7 R RRRR RR DEV1 DEV0 REV4 REV3 REV2 REV1 REV0 bit 6 bit 0 Legend: U = Unimplemented bit, read as ‘0’ R = Readable bit W = Writable bit ‘0’ = Bit is cleared -n = Value at POR ‘1’ = Bit is set x = Bit is unknown bit 13-5 DEV<8:0>: Device ID bits 011011110 = PIC12LF1840T48A bit 4-0 REV<4:0>: Revision ID bits These bits are used to identify the revision. Note 1: This location cannot be written. |
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