
PIC18F2423/2523/4423/4523
DS39755C-page 36
2009 Microchip Technology Inc.
REGISTER 3-2:
DEVID2: DEVICE ID REGISTER 2 FOR PIC18F2423/2523/4423/4523
RR
R
DEV11(1)
DEV10(1)
DEV9(1)
DEV8(1)
DEV7(1)
DEV6(1)
DEV5(1)
DEV4(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
DEV<11:4>: Device ID bits(1)
These bits are used with the DEV<3:0> bits in Device ID Register 1 to identify the part number.
0001 0001 = PIC18F2423/2523 devices
0001 0000 = PIC18F4423/4523 devices
Note 1:
These values for DEV<11:4> may be shared with other devices. The specific device is always identified by
using the entire DEV<11:0> bit sequence.