PIC18F2331_07 Datasheet, PDF (164/400 Pages) Microchip Technology – 28/40/44-Pin Enhanced Flash Microcontrollers with nanoWatt Technology, High Performance PWM and A/D

PIC18F2331/2431/4331/4431
FIGURE 16-3:
INPUT CAPTURE BLOCK DIAGRAM FOR IC2 AND IC3
CAP2/3 Pin
Noise
Filter
Prescaler
1, 4, 16
and
Mode
Select
3
FLTCK<2:0>
4
CAP1M<3:0>⁽¹⁾ Q Clocks
CAPxBUF^(1,2,3)
Capture
Clock
TMR5
Enable
TMR5
Capture Clock/
Reset/
Interrupt
Decode
Logic
ICxIF⁽¹⁾
CAPxBUF_clk⁽¹⁾
Reset
Q Clocks CAPxM<3:0>⁽¹⁾
Note 1: IC2 and IC3 are denoted as x = 2 and 3.
2: CAP2BUF is enabled as POSCNT when QEI mode is active.
3: CAP3BUF is enabled as MAXCNT when QEI mode is active.
Timer
Reset
Control
TMR5 Reset
CAPxREN⁽²⁾
DS39616C-page 162
Preliminary
© 2007 Microchip Technology Inc.