MC68HC908JL3ECFA Freescale Semiconductor, MC68HC908JL3ECFA Datasheet - Page 123
MC68HC908JL3ECFA
Manufacturer Part Number
MC68HC908JL3ECFA
Description
IC MCU 4K FLASH 8MHZ 48-LQFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908JK1ECDWE.pdf
(180 pages)
Specifications of MC68HC908JL3ECFA
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Peripherals
LED, LVD, POR, PWM
Number Of I /o
23
Program Memory Size
4KB (4K x 8)
Program Memory Type
FLASH
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.3 V
Data Converters
A/D 12x8b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
48-LQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Connectivity
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC68HC908JL3ECFA
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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Chapter 13
Computer Operating Properly (COP)
13.1 Introduction
The computer operating properly (COP) module contains a free-running counter that generates a reset if
allowed to overflow. The COP module helps software recover from runaway code. Prevent a COP reset
by clearing the COP counter periodically. The COP module can be disabled through the COPD bit in the
CONFIG1 register.
13.2 Functional Description
Figure 13-1
Freescale Semiconductor
NOTE: See
INTERNAL RESET SOURCES
(COPRS FROM CONFIG1)
Chapter 5 System Integration Module (SIM)
shows the structure of the COP module.
COPD (FROM CONFIG1)
RESET VECTOR FETCH
COPEN (FROM SIM)
COPCTL WRITE
COPCTL WRITE
COP RATE SEL
2OSCOUT
RESET
(1)
MC68HC908JL3E Family Data Sheet, Rev. 4
Figure 13-1. COP Block Diagram
COP MODULE
COP CLOCK
12-BIT SIM COUNTER
COP COUNTER
for more details.
6-BIT COP COUNTER
CLEAR
SIM
RESET STATUS REGISTER
SIM RESET CIRCUIT
123
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