PIC18F2331 MICROCHIP [Microchip Technology], PIC18F2331 Datasheet - Page 49

• Manufacturer Part Number: PIC18F2331
• Description: 28/40/44-Pin Enhanced Flash Microcontrollers with nanoWatt Technology, High Performance PWM and A/D
• Manufacturer: MICROCHIP [Microchip Technology]

TABLE 4-1:
REGISTER 4-1:
TABLE 4-2:
 2003 Microchip Technology Inc.
HSPLL
HS, XT, LP
EC, ECIO
RC, RCIO
INTIO1, INTIO2
Note 1:
Power-on Reset
RESET Instruction
Brown-out
MCLR during power-managed
run modes
MCLR during power-managed
idle modes and Sleep
WDT Time-out during full power
or power-managed Run
MCLR during full power
execution
Stack Full Reset (STVREN = 1)
Stack Underflow Reset
(STVREN = 1)
Stack Underflow Error (not an
actual Reset, STVREN = 0)
WDT Time-out during power-
managed Idle or Sleep
Interrupt Exit from power-man-
aged modes
Legend: u = unchanged, x = unknown, - = unimplemented bit, read as ‘0’.
Note 1:
Configuration
2:
Oscillator
66 ms (65.5 ms) is the nominal Power-up Timer (PWRT) delay.
2 ms is the nominal time required for the 4x PLL to lock.
Condition
When the wake-up is due to an interrupt and the GIEH or GIEL bits are set, the PC is loaded with the
interrupt vector (0x000008h or 0x000018h).
TIME-OUT IN VARIOUS SITUATIONS
STATUS BITS, THEIR SIGNIFICANCE AND THE INITIALIZATION CONDITION FOR
RCON REGISTER
RCON REGISTER BITS AND POSITIONS
bit 7
Note:
R/W-0
IPEN
66 ms
66 ms
(1)
Refer to Section 5.14 “RCON Register” for bit definitions.
PWRTEN = 0
+ 1024 T
Program
PC + 2
Counter
(1)
PC + 2
66 ms
66 ms
66 ms
0000h
0000h
0000h
0000h
0000h
0000h
0000h
0000h
U-0
—
+ 1024 T
(1)
Power-up
(1)
(1)
(1)
OSC
PIC18F2331/2431/4331/4431
+ 2 ms
OSC
0--1 1100
0--0 uuuu
0--1 11u-
0--u 1uuu
0--u 10uu
0--u 0uuu
0--u uuuu
u--u uuuu
u--u 00uu
u--u u0uu
U-0
Register
Preliminary
—
RCON
(2)
(2)
and Brown-out
R/W-1
RI
RI
1024 T
1
0
1
u
u
u
u
u
u
u
PWRTEN = 1
1024 T
TO
1
u
1
1
1
0
u
u
0
u
OSC
—
—
—
R-1
TO
PD
+ 2 ms
OSC
1
u
1
u
0
u
u
u
0
0
POR
(2)
0
u
u
u
u
u
u
u
u
u
R-1
PD
BOR
0
u
0
u
u
u
u
u
u
u
Power-Managed Mode
1024 T
STKFUL
R/W-1
POR
1024 T
Exit from
0
u
u
u
u
u
u
1
u
u
u
u
DS39616B-page 47
OSC
—
—
—
+ 2 ms
OSC
STKUNF
R/W-1
BOR
0
u
u
u
u
u
u
u
1
1
u
u
(2)
bit 0