Microchip Technology MA160014 Hoja De Datos
PIC18(L)F2X/4XK22
DS41412F-page 454
2010-2012 Microchip Technology Inc.
FIGURE 27-12:
CAPTURE/COMPARE/PWM TIMINGS (ALL CCP MODULES)
TABLE 27-12: TIMER0 AND TIMER1/3/5 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
(T
CY
+ 40)/N
—
ns
N = prescale
value
(1, 2, 4,..., 256)
value
(1, 2, 4,..., 256)
45
Tt1H
TxCKI High
Time
Time
Synchronous, no prescaler
0.5 T
CY
+ 20
—
ns
Synchronous,
with prescaler
with prescaler
10
—
ns
Asynchronous
30
—
ns
46
Tt1L
TxCKI Low
Time
Time
Synchronous, no prescaler
0.5 T
CY
+ 5
—
ns
Synchronous,
with prescaler
with prescaler
10
—
ns
Asynchronous
30
—
ns
47
Tt1P
TxCKI Input
Period
Period
Synchronous
Greater of:
20 ns or
(T
CY
+ 40)/N
—
ns
N = prescale
value (1, 2, 4, 8)
value (1, 2, 4, 8)
Asynchronous
60
—
ns
Ft1
TxCKI Clock Input Frequency Range
DC
50
kHz
48
Tcke2tmrI
Delay from External TxCKI Clock Edge to Timer
Increment
Increment
2 T
OSC
7 T
OSC
—
Note:
for load conditions.
CCPx
(Capture Mode)
50
51
52
CCPx
53
54
(Compare or PWM Mode)