W79E217A Datasheet, PDF (37/207 Pages) Winbond – 8-bit Microcontroller

Preliminary W79E217A Data Sheet
CAPTURE CONTROL 1 REGISTER
Bit:
7
6
5
4
3
2
1
0
-
-
ENF2
ENF1
ENF0
CPTF2 CPTF1/ CPTF0
Mnemonic: CAPCON1
Address: A4h
BIT
NAME
FUNCTION
7-6 -
Reserved.
5 ENF2
Enable filter for capture input 2.
4 ENF1
Enable filter for capture input 1.
3 ENF0
Enable filter for capture input 0.
2 CPTF2
Input capture/reload 2 interrupt flag.
Input Capture 2 flag share the same bit with DIRF flag.
IC mode - Input capture/reload 1 interrupt flag.
1 CPTF1/DIRF _{QEI mode - Direction changed interrupt flag. Bit is set by hardware when}
direction index (DIR) changes state and direction change interrupt is
requested if it is enabled. DIRF is cleared by software.
Input Capture 0 flag share the same bit with QEI flag.
IC mode – Input capture/reload 0 interrupt flag.
0 CPTF0/QEIF ^{QEI mode - QEI interrupt flag.}
1. In free-counting mode, if Pulse Counter overflows or underflows.
2. In compare-counting mode, if Pulse Counter overflows from Maximum
Count to zero or underflows from zero to Maximum Count.
PORT 4
Bit:
7
-
Mnemonic: P4
BIT NAME
7-4 -
3-2 P4
1 P4
0 P4
6
5
4
3
2
1
0
-
-
-
P4.3
P4.2
P4.1
P4.0
Address: A5h
FUNCTION
Reserved.
GPIO.
GPIO. Alternate function T2EX/IC2 for Timer 2 external trigger/Input Capture 2
respectively.
GPIO. Alternate function STADC. External start ADC trigger input.
- 37 -
Publication Release Date: December 14, 2007
Revision A3.0