MC68HC11KW1 Datasheet, PDF (157/238 Pages) Motorola, Inc – High-density complementary metal oxide semiconductor HCMOS) microcontroller unit

MCU
E clock
Prescaler
÷ 1, 4, 8, 16
PR[1:0]
TCNT (hi) TCNT (lo)
16-bit
free running counter
TOI
&
TOF
Taps for RTI, COP and PA
9
Note ^†
16-bit timer bus
16-bit comparator ^EQ
TOC1 (hi) TOC1 (lo)
OC1F
CFORC
Force O/P
OC1I
compare
FOC1
OC2I
To pulse accumulator
&
8
PA7/
+
Bit 7
OC1/
PAI
&
7
16-bit comparator ^EQ
TOC2 (hi) TOC2 (lo)
OC2F
FOC2
OC3I
+
Bit 6
&
6
PA6/
OC2/
OC1
16-bit comparator ^EQ
TOC3 (hi) TOC3 (lo)
OC3F
FOC3
OC4I
+
Bit 5
&
5
PA5/
OC3/
OC1
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
FOC4
I4/O5I
+
Bit 4
&
4
PA4/
OC4/
OC1
FOC5
PA3/
+
Bit 3
OC5/
OC1/
IC1I
&
3
IC4
9
16-bit latch ^CLK
IC1F
TIC1 (hi) TIC1 (lo)
Bit 2
PA2/
IC1
IC2I
&
2
16-bit latch ^CLK
IC2F
TIC2 (hi) TIC2 (lo)
Bit 1
PA1/
IC2
IC3I
&
1
16-bit latch ^CLK
TIC3 (hi) TIC3 (lo)
IC3F
TFLG1
status
flags
TMSK1
interrupt
enables
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
Figure 9-2 Timer 1 capture/compare block diagram
MC68HC11KW1
TIMING SYSTEM
9-5