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| PIC18F2331_10 Datasheet, PDF (273/392 Pages) Microchip Technology – 28/40/44-Pin Enhanced Flash Microcontrollers with nanoWatt Technology, High-Performance PWM and A/D | |||
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PIC18F2331/2431/4331/4431
REGISTER 23-13: 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 â0â
U = Unchanged from programmed state
bit 7-5
bit 4-0
DEV<2:0>: 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
REV<4:0>: Revision ID bits
These bits are used to indicate the device revision.
REGISTER 23-14: DEVID2: DEVICE ID REGISTER 2 FOR PIC18F2331/2431/4331/4431 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 = Readable bit
P = Programmable bit
-n = Value when device is unprogrammed
U = Unimplemented bit, read as â0â
U = Unchanged from programmed state
bit 7-0
DEV<10:3>: Device ID bits(1)
These bits are used with the DEV<2:0> bits in the Device ID Register 1 to identify the
part number
0000 0101 = PIC18F2331/2431/4331/4431 devices
Note 1: These values for DEV<10:3> may be shared with other devices. The specific device is always identified by
using the entire DEV<10:0> bit sequence.
ï£ 2010 Microchip Technology Inc.
DS39616D-page 273
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