PIC18F2331_07 Datasheet, PDF (281/400 Pages) Microchip Technology – 28/40/44-Pin Enhanced Flash Microcontrollers with nanoWatt Technology, High Performance PWM and A/D

PIC18F2331/2431/4331/4431
REGISTER 22-13: DEVID1: DEVICE ID REGISTER 1 FOR PIC18F2331/2431/4331/4431 DEVICES
R
DEV2
bit 7
R
DEV1
R
DEV0
R
REV4
R
REV3
R
REV2
R
REV1
R
REV0
bit 0
Legend:
R = Readable bit
P = Programmable bit
-n = Value when device is unprogrammed
U = Unimplemented bit, read as ‘0’
U = Unchanged from programmed state
bit 7-5
bit 4-0
DEV2:DEV0: Device ID bits
These bits are used with the DEV<10:3> bits in the Device ID Register 2 to identify the part number.
000 = PIC18F4331
001 = PIC18F4431
100 = PIC18F2331
101 = PIC18F2431
REV4:REV0: Revision ID bits
These bits are used to indicate the device revision.
REGISTER 22-14: DEVID2: DEVICE ID REGISTER 2 FOR PIC18F2331/2431/4331/4431 DEVICES
R
DEV10
bit 7
R
DEV9
R
DEV8
R
DEV7
R
DEV6
R
DEV5
R
DEV4
R
DEV3
bit 0
Legend:
R = Readable bit
P = Programmable bit
-n = Value when device is unprogrammed
U = Unimplemented bit, read as ‘0’
U = Unchanged from programmed state
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
0000 0101 = PIC18F2331/2431/4331/4431 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.
© 2007 Microchip Technology Inc.
Preliminary
DS39616C-page 279