MC68HC11E0CFNE2 Freescale Semiconductor, MC68HC11E0CFNE2 Datasheet - Page 92

• Manufacturer Part Number: MC68HC11E0CFNE2
• Description: IC MCU 8BIT 2MHZ 52-PLCC
• Manufacturer: Freescale Semiconductor
• Series: HC11r

Specifications of MC68HC11E0CFNE2

• Core Processor: HC11
• Core Size: 8-Bit
• Speed: 2MHz
• Connectivity: SCI, SPI
• Peripherals: POR, WDT
• Number Of I /o: 38
• Program Memory Type: ROMless
• Ram Size: 512 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
• Controller Family/series: 68HC11
• No. Of I/o's: 38
• Ram Memory Size: 512Byte
• Cpu Speed: 2MHz
• No. Of Timers: 1
• Embedded Interface Type: SCI, SPI
• Digital Ic Case Style: LCC
• Rohs Compliant: Yes
• Processor Series: HC11E
• Core: HC11
• Data Bus Width: 8 bit
• Data Ram Size: 512 B
• Interface Type: SCI, SPI
• Maximum Clock Frequency: 2 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
• Eeprom Size: -
• Program Memory Size: -
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

Resets and Interrupts
92
SET BIT I IN CCR
FETCH VECTOR
$FFF8, $FFF9
STACK CPU
REGISTERS
Figure 5-5. Processing Flow Out of Reset (Sheet 2 of 2)
SET BIT I IN CCR
FETCH VECTOR
$FFF6, $FFF7
STACK CPU
REGISTERS
RESTORE CPU
FROM STACK
REGISTERS
M68HC11E Family Data Sheet, Rev. 5.1
Y
Y
Y
Y
FETCH OPCODE
INSTRUCTION?
INSTRUCTION?
EXECUTE THIS
INSTRUCTION?
INSTRUCTION
INTERRUPT
OPCODE?
PENDING?
CCR = 1?
ANY I-BIT
ILLEGAL
BIT I IN
WAI
SWI
RTI
1A
2A
N
N
N
N
N
N
Y
Y
N
RESOLVE INTERRUPT
PRIORITY AND FETCH
VECTOR FOR HIGHEST
PENDING SOURCE
SEE FIGURE 5–2
SET BIT I IN CCR
STACK CPU
REGISTERS
INTERRUPT
PENDING?
Y
ANY
Freescale Semiconductor
STACK CPU
REGISTERS