Manual

High-Speed Microcontroller User’s Guide
Rev: 062210 128 of 176
Figure 11-5. Timer/Counter 2 Auto-Reload Mode
(a) DCEN = 0
OSC INPUT TO TIMER
CLK MODE TIMER INPUT
DIVIDE-BY-4 OSC/1
PMM1 OSC/16
PMM2 OSC/256
DIVIDE
BY 12
DIVIDE
BY 4
T2 = P1.0
TR2 = T2CON.2
EXEN2 = T2CON.3
EXF2 =
T2
CO
N.
6
TIMER 2
INTERRUPT
0
1
0
1
T2M = CKCON.5
TL2
0
7
TH2
8
15
TF2 =
T2CON.7
0
7
8
15
RC
AP2L
RCAP2H
T2EX = P1.1
C/
T2
= T2CON.1
CLK
OSC INPUT TO TIMER
CLK MODE TIMER INPUT
DIVIDE-BY-4 OSC/1
PMM1 OSC/16
PMM2 OSC/256
DIVIDE
BY 12
DIVIDE
BY 4
T2 = P1.0
TR2 = T2CON.2
0
1
0
1
T2M = CKCON.5
RCAP2L
RCAP2H
(b) DCEN = 1
0FFH 0FFH
0
7
8
15
TL2 TH2
(
DOWN COUNTING RELOAD VALUE
)
0
7
8
15
T2EX = P1.1
(
UP COUNTING RELOAD VALUE
)
TF2 =
T2
CO
N.7
TIMER 2
INTERR
U
PT
EXF2 =
T2
CO
N.
6
COUNT DIRECTION
(
1 = UP
,
0 = DOWN
)
C/
T2
= T2CON.1
CLK