Datasheet

 2010-2015 Microchip Technology Inc. DS40001303H-page 373
PIC18F2XK20/4XK20
FIGURE 26-10: CAPTURE/COMPARE/PWM TIMINGS (ALL CCP MODULES)
TABLE 26-22: TIMER0 AND TIMER1 EXTERNAL CLOCK REQUIREMENTS
Param
.
No.
Symbol Characteristic Min. Max. Units Conditions
40 Tt0H T0CKI High Pulse Width No prescaler 0.5 T
CY + 20 — ns
With prescaler 10 — ns
41 Tt0L T0CKI Low Pulse Width No prescaler 0.5 T
CY + 20 — ns
With prescaler 10 — ns
42 Tt0P T0CKI Period No prescaler T
CY + 10 — ns
With prescaler Greater of:
20 ns or
(TCY + 40)/N
— ns N = prescale
value
(1, 2, 4,..., 256)
45 Tt1H T13CKI
High Time
Synchronous, no prescaler 0.5 TCY + 20 — ns
Synchronous,
with prescaler
10 — ns
Asynchronous 30 — ns
46 Tt1L T13CKI
Low Time
Synchronous, no prescaler 0.5 T
CY + 5 — ns
Synchronous,
with prescaler
10 — ns
Asynchronous 30 — ns
47 Tt1P T13CKI
Input Period
Synchronous Greater of:
20 ns or
(T
CY + 40)/N
— ns N = prescale
value (1, 2, 4, 8)
Asynchronous 60 — ns
Ft1 T13CKI Clock Input Frequency Range DC 50 kHz
48 Tcke2tmrI Delay from External T13CKI Clock Edge to
Timer Increment
2 T
OSC 7 TOSC —
Note: Refer to Figure 26-4 for load conditions.
CCPx
(Capture Mode)
50 51
52
CCPx
53
54
(Compare or PWM Mode)