MC68HC711D3CFNE2 Datasheet, PDF (90/124 Pages) Freescale Semiconductor, Inc – Power Saving STOP and WAIT Modes

Freescale Semiconductor, Inc.
SYSTEM
CLOCK
PRESCALER — DIVIDE BY
1, 4, 8, 16
PR1 PR0
TCNT (HI) TCNT (LO)
16-BIT FREE RUNNING
COUNTER
TOI
TOF
9
INTERRUPT REQUESTS
16-BIT TIMER BUS
16-BIT COMPARATOR =
TOC1 (HI) TOC1 (LO)
OC1F
16-BIT COMPARATOR =
TOC2 (HI) TOC2 (LO)
OC2F
16-BIT COMPARATOR =
TOC3 (HI) TOC3 (LO)
OC3F
16-BIT COMPARATOR =
TOC4 (HI) TOC4 (LO)
OC4F
16-BIT COMPARATOR =
TI4/O5 (HI) TI4/O5 (LO)
16-BIT LATCH CLK
16-BIT LATCH CLK
TIC1 (HI) TIC1 (LO)
16-BIT LATCH
CLK
TIC2 (HI) TIC2 (LO)
16-BIT LATCH CLK
TIC3 (HI) TIC3 (LO)
OC5
I4/O5F
IC4
I4/O5
IC1F
IC2F
IC3F
TFLG 1
STATUS
FLAGS
OC1I
FOC1
OC2I
FOC2
OC3I
FOC3
OC4I
FOC4
I4/O5I
FOC5
IC1I
IC2I
IC3I
CFORC
TMSK 1
FORCE OUTPUT INTERRUPT
COMPARE
ENABLES
PIN
8
FUNCTIONS
BIT 7
PA7
OC1
7
BIT 6
PA6
OC2/OC1
6
BIT 5
PA5
OC3/OC1
5
BIT 4
PA4
OC4/OC1
4
BIT 3
PA3
IC4/OC5
OC1
3
BIT 2
PA2
IC1
2
BIT 1
PA1
IC2
1
BIT 3
PA0
IC3
PARALLEL PORT
PIN CONTROL
11 CC BLOCK
Figure 9-2 Capture/Compare Block Diagram
9.2 Input Capture
The input capture function records the time an external event occurs by latching the
value of the free-running counter when a selected edge is detected at the associated
timer input pin. Software can store latched values and use them to compute the peri-
odicity and duration of events. For example, by storing the times of successive edges
of an incoming signal, software can determine the period and pulse width of a signal.
To measure period, two successive edges of the same polarity are captured. To mea-
sure pulse width, two alternate polarity edges are captured.
TIMING SYSTEM
9-4
TECHNICAL DATA
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