MC68711E20CFNE3 Freescale Semiconductor, MC68711E20CFNE3 Datasheet - Page 53

• Manufacturer Part Number: MC68711E20CFNE3
• Description: IC MCU 8BIT 52-PLCC
• Manufacturer: Freescale Semiconductor
• Series: HC11r

Specifications of MC68711E20CFNE3

• Core Processor: HC11
• Core Size: 8-Bit
• Speed: 3MHz
• Connectivity: SCI, SPI
• Peripherals: POR, WDT
• Number Of I /o: 38
• Program Memory Size: 20KB (20K x 8)
• Program Memory Type: OTP
• Eeprom Size: 512 x 8
• 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: 52-PLCC
• Processor Series: M687xx
• Core: HC11
• Data Bus Width: 8 bit
• Data Ram Size: 768 B
• Interface Type: SCI, SPI
• Maximum Clock Frequency: 3 MHz
• Number Of Programmable I/os: 38
• 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

Freescale Semiconductor
DELAY 4064 E CYCLES
POWER-ON RESET
(POR)
LOAD PROGRAM COUNTER
WITH CONTENTS OF
(VECTOR FETCH)
Figure 4-4. Processing Flow Out of Reset (Sheet 1 of 2)
$FFFE, $FFFF
PRIORITY
HIGHEST
EXTERNAL RESET
1A
MC68HC711D3 Data Sheet, Rev. 2.1
Y
BEGIN INSTRUCTION
SET BITS S, I, AND X
RESET MCU
HARDWARE
SEQUENCE
PIN LOW?
CCR = 1?
BIT X IN
XIRQ
2A
N
N
LOAD PROGRAM COUNTER
CLOCK MONITOR FAIL
WITH CONTENTS OF
(VECTOR FETCH)
(WITH CME = 1)
$FFFC, $FFFD
Y
SET BITS I AND X
FETCH VECTOR
$FFF4, $FFF5
STACK CPU
REGISTERS
LOAD PROGRAM COUNTER
WITH CONTENTS OF
(WITH NOCOP = 0)
COP WATCHDOG
(VECTOR FETCH)
$FFFA, $FFFB
TIMEOUT
PRIORITY
LOWEST
Interrupts
53