MC68HC11P2 Datasheet, PDF (141/268 Pages) Motorola, Inc – Microcontrollers

Freescale Semiconductor, Inc.
Timing System
Timer structure
MCU
E clock
Prescaler
÷ 1, 4, 8, 16
PR[1:0]
16-bit timer bus
TCNT (hi) TCNT (lo)
16-bit
free running counter
16-bit comparator ^EQ
TOC1 (hi) TOC1 (lo)
OC1F
16-bit comparator ^EQ
TOC2 (hi) TOC2 (lo)
OC2F
16-bit comparator ^EQ
TOC3 (hi) TOC3 (lo)
OC3F
16-bit comparator ^EQ
TOC4 (hi) TOC4 (lo)
OC4F
16-bit comparator ^EQ
TI4/O5 (hi) TI4/O5 (lo)
16-bit latch ^CLK
OC5
I4/O5
I4/O5F
IC4
16-bit latch ^CLK
IC1F
TIC1 (hi) TIC1 (lo)
16-bit latch ^CLK
IC2F
TIC2 (hi) TIC2 (lo)
16-bit latch ^CLK
TIC3 (hi) TIC3 (lo)
IC3F
TFLG1
status
flags
TOI
&
TOF
Taps for RTI, COP and PA
CFORC
Force O/P
OC1I
compare
&
+
FOC1
OC2I
&
+
FOC2
OC3I
&
+
FOC3
OC4I
&
+
FOC4
I4/O5I
&
+
FOC5
IC1I
&
IC2I
&
IC3I
&
TMSK1
interrupt
enables
9
Note ^†
To pulse accumulator
8
PA7/
Bit 7
OC1/
PAI
7
Bit 6
6
Bit 5
5
Bit 4
4
Bit 3
3
Bit 2
PA6/
OC2/
OC1
PA5/
OC3/
OC1
PA4/
OC4/
OC1
PA3/
OC5/
OC1/
IC4
PA2/
IC1
2
Bit 1
PA1/
IC2
1
Bit 0
Port A
pin
control^‡
PA0/
IC3
Pins/
functions
† Interrupt requests 1–9 (these are further qualified by the I-bit in the CCR)
‡ Port A pin actions are controlled by OC1M, OC1D, PACTL, TCTL1 and TCTL2 registers
MC68HC11P2 — Rev 1.0
Timing System
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Technical Data