PIC18F87J90 Datasheet, PDF (60/450 Pages) Microchip Technology – 64/80-Pin, High-Performance Microcontrollers with LCD Driver and nanoWatt Technology

PIC18F87J90 FAMILY
TABLE 5-2: INITIALIZATION CONDITIONS FOR ALL REGISTERS (CONTINUED)
Register
Applicable Devices
Power-on Reset,
Brown-out Reset
MCLR Resets
WDT Reset
RESET Instruction
Stack Resets
Wake-up via WDT
or Interrupt
FSR1H
PIC18F6XJ90 PIC18F8XJ90
---- xxxx
---- uuuu
---- uuuu
FSR1L
PIC18F6XJ90 PIC18F8XJ90
xxxx xxxx
uuuu uuuu
uuuu uuuu
BSR
PIC18F6XJ90 PIC18F8XJ90
---- 0000
---- 0000
---- uuuu
INDF2
PIC18F6XJ90 PIC18F8XJ90
N/A
N/A
N/A
POSTINC2 PIC18F6XJ90 PIC18F8XJ90
N/A
N/A
N/A
POSTDEC2 PIC18F6XJ90 PIC18F8XJ90
N/A
N/A
N/A
PREINC2
PIC18F6XJ90 PIC18F8XJ90
N/A
N/A
N/A
PLUSW2
PIC18F6XJ90 PIC18F8XJ90
N/A
N/A
N/A
FSR2H
PIC18F6XJ90 PIC18F8XJ90
---- xxxx
---- uuuu
---- uuuu
FSR2L
PIC18F6XJ90 PIC18F8XJ90
xxxx xxxx
uuuu uuuu
uuuu uuuu
STATUS
PIC18F6XJ90 PIC18F8XJ90
---x xxxx
---u uuuu
---u uuuu
TMR0H
PIC18F6XJ90 PIC18F8XJ90
0000 0000
0000 0000
uuuu uuuu
TMR0L
PIC18F6XJ90 PIC18F8XJ90
xxxx xxxx
uuuu uuuu
uuuu uuuu
T0CON
PIC18F6XJ90 PIC18F8XJ90
1111 1111
1111 1111
uuuu uuuu
OSCCON
PIC18F6XJ90 PIC18F8XJ90
0110 q000
0110 q000
uuuu quuu
LCDREG
PIC18F6XJ90 PIC18F8XJ90
-011 1100
-011 1000
-uuu uuuu
WDTCON
RCON⁽⁴⁾
PIC18F6XJ90 PIC18F8XJ90
PIC18F6XJ90 PIC18F8XJ90
0--- ---0
0-11 11q0
0--- ---0
0-0q qquu
u--- ---u
u-uu qquu
TMR1H
PIC18F6XJ90 PIC18F8XJ90
xxxx xxxx
uuuu uuuu
uuuu uuuu
TMR1L
PIC18F6XJ90 PIC18F8XJ90
xxxx xxxx
uuuu uuuu
uuuu uuuu
T1CON
PIC18F6XJ90 PIC18F8XJ90
0000 0000
u0uu uuuu
uuuu uuuu
TMR2
PIC18F6XJ90 PIC18F8XJ90
0000 0000
0000 0000
uuuu uuuu
PR2
PIC18F6XJ90 PIC18F8XJ90
1111 1111
1111 1111
1111 1111
T2CON
PIC18F6XJ90 PIC18F8XJ90
-000 0000
-000 0000
-uuu uuuu
SSPBUF
PIC18F6XJ90 PIC18F8XJ90
xxxx xxxx
uuuu uuuu
uuuu uuuu
SSPADD
PIC18F6XJ90 PIC18F8XJ90
0000 0000
0000 0000
uuuu uuuu
SSPSTAT
PIC18F6XJ90 PIC18F8XJ90
0000 0000
0000 0000
uuuu uuuu
SSPCON1
PIC18F6XJ90 PIC18F8XJ90
0000 0000
0000 0000
uuuu uuuu
SSPCON2
PIC18F6XJ90 PIC18F8XJ90
0000 0000
0000 0000
uuuu uuuu
Legend: u = unchanged, x = unknown, - = unimplemented bit, read as ‘0’, q = value depends on condition.
Shaded cells indicate conditions do not apply for the designated device.
Note 1: When the wake-up is due to an interrupt and the GIEL or GIEH bit is set, the TOSU, TOSH and TOSL are
updated with the current value of the PC. The STKPTR is modified to point to the next location in the
hardware stack.
2: When the wake-up is due to an interrupt and the GIEL or GIEH bit is set, the PC is loaded with the interrupt
vector (0008h or 0018h).
3: One or more bits in the INTCONx or PIRx registers will be affected (to cause wake-up).
4: See Table 5-1 for Reset value for specific conditions.
5: Bits 6 and 7 of PORTA, LATA and TRISA are enabled depending on the oscillator mode selected. When
not enabled as PORTA pins, they are disabled and read as ‘0’.
DS39933D-page 60
 2010 Microchip Technology Inc.