Maxim Integrated MAXQ Family - Manual (Page 83)

9-5
MAXQ Family User’s Guide
9.2 Modes of Operation
As summarized in Table 9-1, Timer 2 can provide six timer functions. The Timer 2 operating mode selection is illustrated in Figure 9-1
and Figure 9-2 shows the PWM timer output possibilities.
T2MD
T2L 8-BIT TIMER
T2H:T2L
16-BIT TIMER
OR
T2H
8-TIMER
POSSIBLE INPUT USE:
TIMER GATE
EDGE
CAPTURE/RELOAD
EDGE COUNTER
T2PB PIN
T2OE [0]
T2OE [1] T2POL [1]
POx.x DATA
(IF PDx.x = 1)
POx.x DATA
(IF PDx.x = 1)
T2P PIN
T2POL [0]
Figure 9-2. Output Enable and Polarity Control
T2CL
EDGE DETECTION
AND GATING
C/T2
TR2L
T2MD
T2CLK
CCF [1:0]
G2EN
TR2
SS2
T2POL [0]
T2L
T2L COMPARE MATCH
T2H:T2L COMPARE MATCH
OR T2H COMPARE MATCH
T2L OVERFLOW
T2H:T2L OVERFLOW
OR T2H OVERFLOW
T2RL
T2P PIN INPUT
T2CH
T2H
T2RH
Figure 9-1. Timer 2 Mode Selection
Maxim Integrated