MC68HC11K0CFUE4 Freescale Semiconductor, MC68HC11K0CFUE4 Datasheet - Page 106

• Manufacturer Part Number: MC68HC11K0CFUE4
• Description: MCU 8-BIT 768 RAM 4MHZ 80-QFP
• Manufacturer: Freescale Semiconductor
• Series: HC11r

Specifications of MC68HC11K0CFUE4

• Core Processor: HC11
• Core Size: 8-Bit
• Speed: 4MHz
• Connectivity: SCI, SPI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 37
• Program Memory Type: ROMless
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-QFP
• Data Bus Width: 8 bit
• Data Ram Size: 768 B
• Interface Type: SCI, SPI
• Maximum Clock Frequency: 4 MHz
• Number Of Programmable I/os: 37
• Number Of Timers: 8
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8 bit, 8 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Lead Free Status / Rohs Status: Details

Resets and Interrupts
5.2 Introduction
5.3 Sources of Resets
Technical Data
106
NOTE:
When a reset or interrupt occurs, the microcontroller (MCU) retrieves the
starting address of a program or interrupt routine from a vector table in
memory and loads it in the program counter. A reset immediately stops
execution of the current instruction and reinitializes the control registers.
An interrupt preserves the current program status, performs an interrupt
service routine, and resumes operation as if there had been no
interruption.
The four sources of reset are:
Power-on reset and external reset share the same interrupt vectors.
The CPU fetches a restart vector during the first three clock cycles after
reset and begins executing instructions. Vector selection is based on the
type of reset and operating mode, as shown in
Normal
Test or bootstrap
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Freescale Semiconductor, Inc.
Operating
For More Information On This Product,
Mode
Power-on reset (POR)
External reset (RESET)
Computer operating properly (COP) system
Clock monitor
Go to: www.freescale.com
Resets and Interrupts
$BFFE and $BFFF
$FFFE and $FFFF
POR or RESET
Table 5-1. Reset Vectors
$BFFC and $BFFD
$FFFC and $FFFD
Clock Monitor
Table
5-1.
$BFFA and $BFFB
$FFFA and $FFFB
COP Watchdog
M68HC11K Family
MOTOROLA