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| PIC18F2455_07 Datasheet, PDF (298/430 Pages) Microchip Technology – 28/40/44-Pin, High Performance, Enhanced Flash, USB Microcontrollers with nanoWatt Technology | |||
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PIC18F2455/2550/4455/4550
REGISTER 25-13: DEVID1: DEVICE ID REGISTER 1 FOR PIC18F2455/2550/4455/4550 DEVICES
R
DEV2
bit 7
R
DEV1
R
DEV0
R
REV4
R
REV3
R
REV2
R
REV1
R
REV0
bit 0
Legend:
R = Read-only bit
P = Programmable bit
-n = Value when device is unprogrammed
U = Unimplemented bit, read as â0â
u = Unchanged from programmed state
bit 7-5
bit 4-0
DEV2:DEV0: Device ID bits
011 = PIC18F2455
010 = PIC18F2550
001 = PIC18F4455
000 = PIC18F4550
REV3:REV0: Revision ID bits
These bits are used to indicate the device revision.
REGISTER 25-14: DEVID2: DEVICE ID REGISTER 2 FOR PIC18F2455/2550/4455/4550 DEVICES
R
DEV10(1)
bit 7
R
DEV9(1)
R
DEV8(1)
R
DEV7(1)
R
DEV6(1)
R
DEV5(1)
R
DEV4(1)
R
DEV3(1)
bit 0
Legend:
R = Read-only bit
P = Programmable bit
-n = Value when device is unprogrammed
U = Unimplemented bit, read as â0â
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 Device ID Register 1 to identify the part number.
0001 0010 = PIC18F2455/2550/4455/4550 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.
DS39632D-page 296
Preliminary
© 2007 Microchip Technology Inc.
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