MC68HC908QT2CFQ Freescale Semiconductor, MC68HC908QT2CFQ Datasheet - Page 57

• Manufacturer Part Number: MC68HC908QT2CFQ
• Description: MCU 8-BIT 1536V FLASH 8-DFN
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908QT2CFQ

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Peripherals: LVD, POR, PWM
• Number Of I /o: 5
• Program Memory Size: 1.5KB (1.5K x 8)
• Program Memory Type: FLASH
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 8-DFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Connectivity: -

Chapter 6
Computer Operating Properly (COP)
6.1 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
configuration 1 (CONFIG1) register.
6.2 Functional Description
Freescale Semiconductor
COP DISABLE (COPD FROM CONFIG1)
INTERNAL RESET SOURCES
(COPRS FROM CONFIG1)
COP RATE SELECT
STOP INSTRUCTION
COPEN (FROM SIM)
COPCTL WRITE
COPCTL WRITE
BUSCLKX4
RESET
MC68HC908QY/QT Family Data Sheet, Rev. 6
Figure 6-1. COP Block Diagram
COP CLOCK
12-BIT SIM COUNTER
COP COUNTER
6-BIT COP COUNTER
CLEAR
RESET STATUS REGISTER
RESET CIRCUIT
57