6.0 Timers (Continued)
6.3 TIMER CONTROL FLAGS
The control bits and their functions are summarized below.
TxC3 Timer mode control
TxC2 Timer mode control
TxC1 Timer mode control
TxC0 Timer Start/Stop control in Modes 1 and 2 (Pro-
cessor Independent PWM and External Event
Counter), where 1 = Start, 0 = Stop
Timer Underflow Interrupt Pending Flag in Mode
3 (Input Capture)
TxPNDA Timer Interrupt Pending Flag
TxENA Timer Interrupt Enable Flag
1 = Timer Interrupt Enabled
0 = Timer Interrupt Disabled
TxPNDB Timer Interrupt Pending Flag
TxENB Timer Interrupt Enable Flag
1 = Timer Interrupt Enabled
0 = Timer Interrupt Disabled
The timer mode control bits (TxC3, TxC2 and TxC1) are
detailed below:
Mode TxC3 TxC2 TxC1 Description
Interrupt A
Source
Interrupt B
Source
Timer
Counts On
1
1 0 1 PWM: TxA Toggle Autoreload RA Autoreload RB t
C
1 0 0 PWM: No TxA
Toggle
Autoreload RA Autoreload RB
t
C
2
0 0 0 External Event
Counter
Timer Underflow Pos. TxB Edge Pos. TxA
Edge
0 0 1 External Event
Counter
Timer Underflow Pos. TxB Edge Pos. TxA
Edge
3
0 1 0 Captures: Pos. TxA Edge Pos. TxB Edge t
C
TxA Pos. Edge or Timer
TxB Pos. Edge Underflow
1 1 0 Captures: Pos. TxA Neg. TxB t
C
TxA Pos. Edge Edge or Timer Edge
TxB Neg. Edge Underflow
0 1 1 Captures: Neg. TxA Neg. TxB t
C
TxA Neg. Edge Edge or Timer Edge
TxB Neg. Edge Underflow
1 1 1 Captures: Neg. TxA Neg. TxB t
C
TxA Neg. Edge Edge or Timer Edge
TxB Neg. Edge Underflow
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