Datasheet

PIC18F2331/2431/4331/4431
DS39616D-page 152  2010 Microchip Technology Inc.
FIGURE 17-1: MOTION FEEDBACK MODULE BLOCK DIAGRAM
TCY
Timer5
T5CKI
Data Bus<7:0>
TMR5<15:0>
CAP1/INDX
CAP2/QEA
CAP3/QEB
TMR5<15:0>
TCY
Clock
QEIF
Special Event Trigger Reset
IC3IF
TMR5IF
8
8
8
8
IC2IF
IC1IF
8
8
Position Counter
QEI
Control
Logic
IC1
IC2
Special Event Trigger Output
Direction
Prescaler
Prescaler
Prescaler
Velocity Event
Postscaler
IC3
Filter
Filter
Filter
Special Event Trigger Reset
QEB
QEA
INDX
3x Input Capture Logic
QEI Logic
8
TMR5
Reset
Control
Timer Reset
Timer Reset
CHGIF
CHGIF
IC3IF
IC2IF
QEIF
8
QEI
Mode
Decoder
IC3DRIF
IC2QEIF
Filter
Clock
Divider