MC68HC705J MOTOROLA [Motorola, Inc], MC68HC705J Datasheet - Page 70

• Manufacturer Part Number: MC68HC705J
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

Resets and Interrupts
4.3 Resets
Technical Data
70
A reset immediately stops the operation of the instruction being
executed, initializes certain control and status bits, and loads the
program counter with a user-defined reset vector address. These
sources can generate a reset:
RESET PIN
•
•
•
•
V
DD
Power-on reset (POR) circuit
RESET pin
Computer operating properly (COP) watchdog
Illegal address
Resets and Interrupts
POWER-ON RESET
ILLEGAL ADDRESS
COP WATCHDOG
Figure 4-1. Reset Sources
INTERNAL CLOCK
D
MC68HC705J1A — Rev. 4.0
CK
RESET
LATCH
S
Q
RST
TO CPU AND
PERIPHERAL
MODULES
MOTOROLA