English
Language : 

PIC18F87J90 Datasheet, PDF (326/450 Pages) Microchip Technology – 64/80-Pin, High-Performance Microcontrollers with LCD Driver and nanoWatt Technology
PIC18F87J90 FAMILY
TABLE 25-2: CONFIGURATION BITS AND DEVICE IDs
File Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Default/
Unprogrammed
Value(1)
300000h CONFIG1L DEBUG
300001h CONFIG1H —(2)
XINST
—(2)
STVREN
—(2)
—
—(2)
—
—(3)
—
CP0
—
WDTEN 111- ---1
—
—
---- 01--
300002h CONFIG2L
300003h CONFIG2H
300004h CONFIG3L
300005h CONFIG3H
3FFFFEh DEVID1
3FFFFFh DEVID2
IESO
—(2)
—(2)
—(2)
DEV2
DEV10
FCMEN
—(2)
—(2)
—(2)
DEV1
DEV9
—
—(2)
—(2)
—(2)
DEV0
DEV8
LPT1OSC T1DIG
—(2) WDTPS3
—(2)
—
—(2)
—
FOSC2
WDTPS2
—
—
FOSC1
WDTPS1
RTCOSC
—
FOSC0
WDTPS0
—
CCP2MX
REV4
REV3
REV2
REV1
REV0
DEV7
DEV6
DEV5
DEV4
DEV3
11-1 1111
---- 1111
---- --1-
---- ---1
xxxx xxxx(4)
0000 10x1(4)
Legend:
Note 1:
x = unknown, - = unimplemented. Shaded cells are unimplemented, read as ‘0’.
Values reflect the unprogrammed state as received from the factory and following Power-on Resets. In all other Reset
states, the configuration bytes maintain their previously programmed states.
2: The value of these bits in program memory should always be ‘1’. This ensures that the location is executed as a NOP if it
is accidentally executed.
3: This bit should always be maintained as ‘0’.
4: See Register 25-7 and Register 25-8 for DEVID values. These registers are read-only and cannot be programmed by
the user.
DS39933D-page 326
 2010 Microchip Technology Inc.