mc68hc11e0fnr2 Freescale Semiconductor, Inc, mc68hc11e0fnr2 Datasheet - Page 91

• Manufacturer Part Number: mc68hc11e0fnr2
• Description: Hc11 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Freescale Semiconductor
DELAY 4064 E CYCLES
POWER-ON RESET
(POR)
LOAD PROGRAM COUNTER
WITH CONTENTS OF
(VECTOR FETCH)
Figure 5-5. Processing Flow Out of Reset (Sheet 1 of 2)
PRIORITY
$FFFE, $FFFF
HIGHEST
EXTERNAL RESET
1A
M68HC11E Family Data Sheet, Rev. 5.1
Y
BEGIN INSTRUCTION
SET BITS S, I, AND X
RESET MCU
HARDWARE
SEQUENCE
PIN LOW?
CCR = 1?
BIT X IN
XIRQ
2A
N
N
LOAD PROGRAM COUNTER
CLOCK MONITOR FAIL
WITH CONTENTS OF
(VECTOR FETCH)
(WITH CME = 1)
$FFFC, $FFFD
Y
SET BITS I AND X
FETCH VECTOR
$FFF4, $FFF5
STACK CPU
REGISTERS
LOAD PROGRAM COUNTER
WITH CONTENTS OF
(WITH NOCOP = 0)
COP WATCHDOG
(VECTOR FETCH)
$FFFA, $FFFB
TIMEOUT
Low-Power Operation
PRIORITY
LOWEST
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