Datasheet

PIC18FXX2
DS39564C-page 202 © 2006 Microchip Technology Inc.
R EG I S T ER 1 9 - 1 2 : D EV I C E ID R E G IS T E R 1 F O R P IC 1 8 FX X 2 ( D EV I D 1: B Y T E A D D R ES S 3 F FF F E h )
REGISTER 19-13:
DEVICE ID REGISTER 2 FOR PIC18FXX2 (DEVID2: BYTE ADDRESS 3FFFFFh)
RRRRRRRR
DEV2 DEV1 DEV0 REV4 REV3 REV2 REV1 REV0
bit 7 bit 0
bit 7-5 DEV2:DEV0: Device ID bits
000 = PIC18F252
001 = PIC18F452
100 = PIC18F242
101 = PIC18F442
bit 4-0 REV4:REV0: Revision ID bits
These bits are used to indicate the device revision.
Legend:
R = Readable bit P =Programmable bit U = Unimplemented bit, read as ‘0’
- n = Value when device is unprogrammed u = Unchanged from programmed state
RRRRRRRR
DEV10 DEV9 DEV8 DEV7 DEV6 DEV5 DEV4 DEV3
bit 7 bit 0
bit 7-0 DEV10:DEV3: Device ID bits
These bits are used with the DEV2:DEV0 bits in the Device ID Register 1 to identify the
part number.
Legend:
R = Readable bit P =Programmable bit U = Unimplemented bit, read as ‘0’
- n = Value when device is unprogrammed u = Unchanged from programmed state