MC68HC11E1CFNE2 Freescale Semiconductor, MC68HC11E1CFNE2 Datasheet - Page 93

• Manufacturer Part Number: MC68HC11E1CFNE2
• Description: IC MCU 8BIT 3MHZ 52-PLCC
• Manufacturer: Freescale Semiconductor
• Series: HC11r

Specifications of MC68HC11E1CFNE2

• Core Processor: HC11
• Core Size: 8-Bit
• Speed: 3MHz
• Connectivity: SCI, SPI
• Peripherals: POR, WDT
• Number Of I /o: 38
• Program Memory Type: ROMless
• Eeprom Size: 512 x 8
• 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
• A/d Inputs: 8-Channel, 8-Bit
• Eeprom Memory: 512 Bytes
• Input Output: 38
• Interface: SCI/SPI
• Memory Type: ROM
• Number Of Bits: 8
• Package Type: 52-pin PLCC
• Programmable Memory: 0 Bytes
• Timers: 3-16-bit
• Voltage, Range: 3-5.5 V
• Controller Family/series: 68HC11
• No. Of I/o's: 38
• Eeprom Memory Size: 512Byte
• Ram Memory Size: 512Byte
• Cpu Speed: 2MHz
• No. Of Timers: 1
• Embedded Interface Type: SCI, SPI
• 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
• Program Memory Size: -
• Lead Free Status / Rohs Status: RoHS Compliant part

Freescale Semiconductor
Figure 5-6. Interrupt Priority Resolution (Sheet 1 of 2)
INTERRUPT
OC1I = 1 ?
RTII = 1 ?
NO
PRIORITY
NO
NO
NO
IC1I = 1 ?
NO
IC2I = 1 ?
NO
IC3I = 1 ?
NO
NO
HIGHEST
IN CCR
BEGIN
SET ?
X BIT
IRQ ?
2A
?
M68HC11E Family Data Sheet, Rev. 5.1
YES
YES
YES
YES
YES
YES
YES
YES
INTERRUPT
REAL-TIME
XIRQ PIN
OC1F ?
LOW ?
TIMER
IC1F ?
TIMER
IC2F ?
TIMER
IC3F ?
TIMER
?
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
SET X BIT IN CCR
FETCH VECTOR
FETCH VECTOR
FETCH VECTOR
FETCH VECTOR
FETCH VECTOR
FETCH VECTOR
FETCH VECTOR
FETCH VECTOR
$FFEE, FFEF
$FFEC, FFED
$FFEA, FFEB
$FFF4, FFF5
$FFF2, FFF3
$FFF0, FFF1
$FFE8, FFE9
2B
Low-Power Operation
93