PIC18F87K90 Datasheet, PDF (425/566 Pages) Microchip Technology – 64/80-Pin, High-Performance Microcontrollers with LCD Driver and nanoWatt XLP Technology

PIC18F87K90 FAMILY
REGISTER 28-1: CONFIG1L: CONFIGURATION REGISTER 1 LOW (BYTE ADDRESS 300000h)
U-0
—
bit 7
R/P-1
XINST
U-0
R/P-1
R/P-1
R/P-1
U-0
—
SOSCSEL1 SOSCSEL0 INTOSCSEL0
—
R/P-1
RETEN
bit 0
Legend:
R = Readable bit
-n = Value at POR
P = Programmable bit
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
bit 7
bit 6
bit 5
bit 4-3
bit 2
bit 1
bit 0
Unimplemented: Read as ‘0’
XINST: Extended Instruction Set Enable bit
1 = Instruction set extension and Indexed Addressing mode are enabled
0 = Instruction set extension and Indexed Addressing mode are disabled (Legacy mode)
Unimplemented: Read as ‘0’
SOSCSEL<1:0>: SOSC Power Selection and Mode Configuration bits
11 = High-power SOSC circuit is selected
10 = Digital (SCLKI) mode: I/O port functionality of RC0 and RC1 is enabled
01 = Low-power SOSC circuit is selected
00 = Reserved
INTOSCSEL: LF-INTOSC Low-Power Enable bit
1 = LF-INTOSC is in High-Power mode during Sleep
0 = LF-INTOSC is in Low-Power mode during Sleep
Unimplemented: Read as ‘0’
RETEN: VREG Sleep Enable bit
1 = Regulator power is in Sleep mode, controlled by VREGSLP (WDTCON<7>)
0 = Regulator power is in Sleep mode, controlled by SRETEN (WDTCON<4>). Ultra low-power
regulator is enabled.
 2010 Microchip Technology Inc.
Preliminary
DS39957B-page 425