Pulse Width Count And Capture (Wdth_Cap) Mode - Analog Devices ADSP-BF506F Hardware Reference Manual

Modes of Operation

Pulse Width Count and Capture (WDTH_CAP) Mode

Use the WDTH_CAP mode, often simply called "capture mode," to mea-
sure pulse widths on the TMR or TACI input pins, or to "receive" PWM
signals. Figure 10-10
TIMER_PERIOD
PULSE_HI
Figure 10-10. Timer Flow Diagram, WDTH_CAP Mode
In mode, the
WDTH_CAP
timer is used to determine the period and pulse width of externally applied
rectangular waveforms. Setting the
TIMER_CONFIG
10-24
shows a flow diagram for WDTH_CAP mode.
DATA BUS
SCLK
TIMER_COUNTER
TMR
PIN
LEADING
EDGE
DETECT
TOVF_ERR
PERIOD_CNT
INTERRUPT
LOGIC
INTERRUPT
pin is an input pin. The internally clocked
TMR
register enables this mode.
ADSP-BF50x Blackfin Processor Hardware Reference
TIMER_WIDTH
RESET
TRAILING
DETECT
TIMER_ENABLE
field to
TMODE b#10
PULSE_HI
TMR
PIN
EDGE
in the