MC68HC11E0CFNE3 Datasheet, PDF (144/242 Pages) Freescale Semiconductor, Inc – M68HC11E Family

Timing Systems
E ÷ 64 CLOCK
FROM MAIN TIMER
PAOVI
PAOVF
PAII
PAIF
1
INTERRUPT
REQUESTS
2
TMSK2 INT ENABLES
TFLG2 INTERRUPT STATUS
PAI EDGE
PAEN
DISABLE
FLAG SETTING
MCU PIN
PA7/
PAI/
OC1
INPUT BUFFER
AND
EDGE DETECTOR
OUTPUT
BUFFER
2:1
MUX
DATA
BUS
CLOCK
OVERFLOW
PACNT 8-BIT COUNTER
ENABLE
PAEN
FROM
MAIN TIMER
OC1
FROM
DDRA7
PACTL CONTROL
INTERNAL
DATA BUS
Figure 9-24. Pulse Accumulator
M68HC11E Family Data Sheet, Rev. 5.1
144
Freescale Semiconductor