Maxim Integrated MAXQ7667 - Manual (Page 112)

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MAXQ7667 User’s Guide
6.7 Type 2 Timer/Counter Operation Modes
The MAXQ7667 Type 2 timer/counter supports six operation modes. Table 6-3 summarizes the modes supported by the Type 2 timer
and the peripheral register bits associated with those modes.
The Type 2 timer operating mode selection is illustrated in Figure 6-3. Figure 6-4 shows the PWM timer output possibilities.
Table 6-3. Type 2 Timer/Counter Functions and Control
MODE T2MD C/T2 CCF[1:0] CONTROL BITS
T2OE1:0: Output enables (PWM out)
T2POL1:0: Output polarity select
T2POL0: Defines gating level (when set to input)
SS2: Single-shot pulse control
16-Bit
Autoreload/Compare
Timer
0 0 00
G2EN: Gated PWM output on secondary pin, primary pin is used for gating signal
T2OE0 = 0
T2POL0: Gate level/reload edge select
SS2: Single-shot capture
G2EN: Gate timer clock (or gate reload)
CPRL2: Reload enable
16-Bit Capture
(CCF[1:0] bits define
capture edge)
0 0 01, 10, or 11
T2OE1: Not used
T2OE0 = 0
T2OE1: Pulse counter output enable 16-Bit Counter
(CCF[1:0] bits define
count edge)
0 1 01, 10, or 11
T2POL1: Output polarity select
T2OE1:0: Output enables (PWM out)
T2POL1:0: Output polarity select (primary for gating) Dual 8-Bit Autoreload
Timers
1 0 00
T2Hx Only:
SS2: Single-shot pulse control
T2Lx Only:
T2OE1: Output enable
T2POL1: Output polarity select
T2Hx Only:
T2OE0 = 0
T2POL0: Gate level/reload edge select
SS2: Single-shot capture
G2EN: Gate timer (or gate reload)
8-Bit Capture and 8-Bit
Timer/PWM
1 0 01, 10, or 11
CPRL2: Reload enable
T2Lx Only:
T2OE1: Output enable
T2POL1: Output polarity select
8-Bit Counter and 8-Bit
Timer/PWM
1 1 01, 10, or 11
T2Hx Only:
T2OE[0] = 0