PIC16F1938_13 Datasheet, PDF (58/488 Pages) Microchip Technology – 28/40/44-Pin Flash-Based, 8-Bit CMOS Microcontrollers with LCD Driver

PIC16(L)F1938/9
4.6 Device ID and Revision ID
The memory location 8006h is where the Device ID and
Revision ID are stored. The upper nine bits hold the
Device ID. The lower five bits hold the Revision ID. See
Section 11.5 “User ID, Device ID and Configuration
Word Access” for more information on accessing
these memory locations.
Development tools, such as device programmers and
debuggers, may be used to read the Device ID and
Revision ID.
4.7 Register Definitions: Device ID
REGISTER 4-3:
DEVICEID: DEVICE ID REGISTER⁽¹⁾
R
R
R
DEV8
DEV7
DEV6
bit 13
R
DEV5
R
DEV4
R
DEV2
bit 7
R
DEV1
R
DEV0
R
REV4
R
REV3
R
REV2
R
REV1
Legend:
R = Readable bit
‘0’ = Bit is cleared
‘1’ = Bit is set
-n = Value when blank or after Bulk Erase
bit 13-5
DEV<8:0>: Device ID bits
DEVICE
PIC16F1938
PIC16F1939
PIC16LF1938
PIC16LF1939
DEVICEID<13:0>
DEV<8:0>
REV<4:0>
10 0011 101
10 0011 110
10 0100 101
10 0100 110
X XXXX
X XXXX
X XXXX
X XXXX
bit 4-0
REV<4:0>: Revision ID bits
These bits are used to identify the revision (see the table under DEV<8:0> above).
Note 1: This location cannot be written.
R
DEV3
bit 8
R
REV0
bit 0
DS40001574C-page 58
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