PIC18F2450/4450
REGISTER 18-13: DEVID1: DEVICE ID REGISTER 1 FOR PIC18F2450/4450 DEVICES
R
R
R
R
R
R
R
R
DEV2
DEV1
DEV0
REV4
REV3
REV2
REV1
REV0
bit 7
bit 0
Legend:
R = Read-only bit
P = Programmable bit
U = Unimplemented bit, read as ‘0’
-n = Value when device is unprogrammed
u = Unchanged from programmed state
bit 7-5
bit 4-0
DEV2:DEV0: Device ID bits
001= PIC18F2450
000= PIC18F4450
REV3:REV0: Revision ID bits
These bits are used to indicate the device revision.
REGISTER 18-14: DEVID2: DEVICE ID REGISTER 2 FOR PIC18F2450/4450 DEVICES
R
R
R
R
R
R
R
R
DEV10(1)
DEV9(1)
DEV8(1)
DEV7(1)
DEV6(1)
DEV5(1)
DEV4(1)
DEV3(1)
bit 7
bit 0
Legend:
R = Read-only bit
P = Programmable bit
U = Unimplemented bit, read as ‘0’
-n = Value when device is unprogrammed
u = Unchanged from programmed state
bit 7-0
DEV10:DEV3: Device ID bits(1)
These bits are used with the DEV2:DEV0 bits in the DEVID1 register to identify the part number.
0010 0100= PIC18F2450/4450 devices
Note 1: These values for DEV10:DEV3 may be shared with other devices. The specific device is always identified
by using the entire DEV10:DEV0 bit sequence.
DS39760A-page 200
Advance Information
© 2006 Microchip Technology Inc.
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