PIC18F6520-I Datasheet, PDF (33/380 Pages) Micrel Semiconductor – 64/80-Pin High-Performance, 256 Kbit to 1 Mbit Enhanced Flash Microcontrollers with A/D

PIC18F6520/8520/6620/8620/6720/8720
TABLE 3-1: TIME-OUT IN VARIOUS SITUATIONS
Oscillator
Configuration
Power-up⁽²⁾
PWRTE = 0
PWRTE = 1
Brown-out
Wake-up from
Sleep or
Oscillator Switch
HS with PLL enabled⁽¹⁾
HS, XT, LP
EC
External RC
72 ms + 1024 TOSC
+ 2ms
72 ms + 1024 TOSC
72 ms
72 ms
1024 TOSC
+ 2 ms
1024 TOSC
1.5 µs
—
72 ms⁽²⁾ + 1024 TOSC
+ 2 ms
72 ms⁽²⁾ + 1024 TOSC
72 ms⁽²⁾
72 ms⁽²⁾
1024 TOSC + 2 ms
1024 TOSC
1.5 µs⁽³⁾
—
Note 1: 2 ms is the nominal time required for the 4xPLL to lock.
2: 72 ms is the nominal power-up timer delay, if implemented.
3: 1.5 µs is the recovery time from Sleep. There is no recovery time from oscillator switch.
REGISTER 3-1:
RCON REGISTER BITS AND POSITIONS
R/W-0
U-0
U-0
R/W-1 R/W-1 R/W-1 R/W-1
IPEN
—
—
RI
TO
PD
POR
bit 7
Note 1: Refer to Section 4.14 “RCON Register” for bit definitions.
R/W-1
BOR
bit 0
TABLE 3-2: STATUS BITS, THEIR SIGNIFICANCE AND THE INITIALIZATION CONDITION FOR
RCON REGISTER
Condition
Program
Counter
RCON
Register
RI TO PD POR BOR STKFUL STKUNF
Power-on Reset
0000h 0--1 1100 1 1 1 0
0
u
u
MCLR Reset during normal
0000h 0--u uuuu u u u u
u
u
u
operation
Software Reset during normal
0000h 0--0 uuuu 0 u u u
u
u
u
operation
Stack Full Reset during normal 0000h 0--u uu11 u u u u
u
u
1
operation
Stack Underflow Reset during
0000h 0--u uu11 u u u u
u
1
u
normal operation
MCLR Reset during Sleep
0000h 0--u 10uu u 1 0 u
u
u
u
WDT Reset
0000h 0--u 01uu 1 0 1 u
u
u
u
WDT Wake-up
PC + 2 u--u 00uu u 0 0 u
u
u
u
Brown-out Reset
0000h 0--1 11u0 1 1 1 1
0
u
u
Interrupt wake-up from Sleep
PC + 2⁽¹⁾ u--u 00uu u 1 0
u
u
u
u
Legend: u = unchanged, x = unknown, – = unimplemented bit, read as ‘0’
Note 1: 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).
 2004 Microchip Technology Inc.
DS39609B-page 31