PIC18F2331 MICROCHIP [Microchip Technology], PIC18F2331 Datasheet - Page 43

• 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 3-3:
 2003 Microchip Technology Inc.
Primary System
Clock
(PRI_IDLE mode)
T1OSC or
INTRC
INTOSC
Sleep mode
Note 1:
Clock in Power-
Managed Mode
2:
3:
4:
5:
(1)
(2)
In this instance, refers specifically to the INTRC clock source.
Includes both the INTOSC 8 MHz source and postscaler derived frequencies.
Two-Speed Start-up is covered in greater detail in Section 22.3 “Two-Speed Start-up”.
Execution continues during the INTOSC stabilization period.
Required delay when waking from Sleep and all idle modes. This delay runs concurrently with any other
required delays (see Section 3.3 “Idle Modes”).
ACTIVITY AND EXIT DELAY ON WAKE FROM SLEEP MODE OR ANY IDLE MODE
(BY CLOCK SOURCES)
LP, XT, HS
HSPLL
EC, RC, INTRC
INTOSC
LP, XT, HS
HSPLL
EC, RC, INTRC
INTOSC
LP, XT, HS
HSPLL
EC, RC, INTRC
INTOSC
LP, XT, HS
HSPLL
EC, RC, INTRC
INTOSC
Primary System
Clock
(2)
(2)
(2)
(2)
(1)
(1)
(1)
(1)
OST + 2 ms
OST + 2 ms
OST + 2 ms
Mode Exit
Managed
5-10 s
5-10 s
5-10 s
5-10 s
Power-
1 ms
1 ms
Delay
None
OST
OST
OST
PIC18F2331/2431/4331/4431
(4)
(4)
(5)
(5)
(5)
(5)
Preliminary
Clock Ready
(OSCCON)
Status bit
OSTS
OSTS
OSTS
OSTS
IOFS
IOFS
IOFS
IOFS
—
—
—
—
CPU and peripherals
clocked by primary
clock and executing
instructions.
CPU and peripherals
clocked by selected
power-managed mode
clock and executing
instructions until
primary clock source
becomes ready.
Not clocked or
Two-Speed Start-up (if
enabled) until primary
clock source becomes
ready
Exit by Interrupt
(3)
.
Activity During Wake from
Power-Managed Mode
Not clocked, or
Two-Speed Start-up
(if enabled)
Exit by Reset
DS39616B-page 41
(3)
.