MC908LJ24CPKE Freescale Semiconductor, MC908LJ24CPKE Datasheet - Page 415

• Manufacturer Part Number: MC908LJ24CPKE
• Description: IC MCU 8BIT 24K FLASH 80-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC908LJ24CPKE

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: I²C, IRSCI, SPI
• Peripherals: LCD, LVD, POR, PWM
• Number Of I /o: 48
• Program Memory Size: 24KB (24K x 8)
• Program Memory Type: FLASH
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 6x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

21.1 Contents
21.2 Introduction
MC68HC908LJ24/LK24 — Rev. 2.1
Freescale Semiconductor
Data Sheet — MC68HC908LJ24
Section 21. Computer Operating Properly (COP)
21.2
21.3
21.4
21.4.1
21.4.2
21.4.3
21.4.4
21.4.5
21.4.6
21.4.7
21.4.8
21.5
21.6
21.7
21.8
21.8.1
21.8.2
21.9
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 configuration register 1 (CONFIG1).
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 415
Interrupts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .419
Low-Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 419
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .416
I/O Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 417
COP Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 419
Monitor Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .419
COP Module During Break Mode . . . . . . . . . . . . . . . . . . . . . . 420
Computer Operating Properly (COP)
ICLK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 417
STOP Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 417
COPCTL Write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .417
Power-On Reset. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 417
Internal Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 418
Reset Vector Fetch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 418
COPD (COP Disable). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 418
COPRS (COP Rate Select) . . . . . . . . . . . . . . . . . . . . . . . . 418
Wait Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .420
Stop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .420
Data Sheet
415