PIC18F2331 Datasheet, PDF (36/396 Pages) Microchip Technology – 28/40/44-Pin Enhanced Flash Microcontrollers with nanoWatt Technology, High Performance PWM and A/D

PIC18F2331/2431/4331/4431
FIGURE 3-1:
TIMING TRANSITION FOR ENTRY TO SLEEP MODE
OSC1
Q1 Q2 Q3 Q4 Q1
CPU
Clock
Peripheral
Clock
Sleep
Program
Counter
PC
PC + 2
FIGURE 3-2:
TRANSITION TIMING FOR WAKE FROM SLEEP (HSPLL)
OSC1
PLL Clock
Output
CPU Clock
Peripheral
Clock
Program
Counter
TOST⁽¹⁾
PC
Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4
TPLL⁽¹⁾
PC + 2
PC + 4
PC + 6
PC + 8
Wake Event
OSTS bit Set
Note 1: TOST = 1024 TOSC; TPLL = 2 ms (approx). These intervals are not shown to scale.
DS39616B-page 34
Preliminary
 2003 Microchip Technology Inc.