MC68HC705C8ACB Freescale Semiconductor, MC68HC705C8ACB Datasheet - Page 59

• Manufacturer Part Number: MC68HC705C8ACB
• Manufacturer: Freescale Semiconductor

Specifications of MC68HC705C8ACB

• Cpu Family: HC05
• Device Core Size: 8b
• Frequency (max): 2.1MHz
• Interface Type: SCI/SPI
• Program Memory Type: EPROM
• Program Memory Size: 8KB
• Total Internal Ram Size: 304Byte
• # I/os (max): 24
• Number Of Timers - General Purpose: 1
• Operating Supply Voltage (typ): 3.3/5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 3V
• Instruction Set Architecture: CISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Through Hole
• Pin Count: 42
• Package Type: SPDIP
• Lead Free Status / Rohs Status: Not Compliant

MC68HC705C8A — Rev. 3
MOTOROLA
Figure 4-5. Reset and Interrupt Processing Flowchart
YES
CCR REGISTER
INSTRUCTION?
INSTRUCTION?
INSTRUCTION
Freescale Semiconductor, Inc.
FETCH NEXT
INTERRUPT?
INTERRUPT?
INTERRUPT?
INTERRUPT?
EXTERNAL
I BIT IN
RESET
TIMER
For More Information On This Product,
FROM
SET?
IRQ
SCI
SWI
SPI
RTI
NO
NO
NO
NO
NO
NO
NO
Go to: www.freescale.com
YES
YES
YES
YES
YES
YES
Interrupts
RESTORE REGISTERS FROM STACK:
CLEAR IRQ REQUEST LATCH
EXECUTE INSTRUCTION
1. STACK PC, X, A, CCR
2. SET I BIT
3. LOAD PC WITH VECTOR
TIMER:
CCR, A, X, PC
SWI:
IRQ:
SCI:
SPI:
$1FFC–$1FFD
$1FFA–$1FFB
$1FF8–$1FF9
$1FF6–$1FF7
$1FF4–$1FF5
Interrupt Processing
Technical Data
Interrupts