MC68HC705C9ACFBE Freescale Semiconductor, MC68HC705C9ACFBE Datasheet - Page 37

• Manufacturer Part Number: MC68HC705C9ACFBE
• Description: IC MCU 8BIT 44-QFP
• Manufacturer: Freescale Semiconductor
• Series: HC05r

Specifications of MC68HC705C9ACFBE

• Core Processor: HC05
• Core Size: 8-Bit
• Speed: 2.1MHz
• Connectivity: SCI, SPI
• Peripherals: POR, WDT
• Number Of I /o: 24
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: OTP
• Ram Size: 352 x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-QFP
• Processor Series: HC705C
• Core: HC05
• Data Bus Width: 8 bit
• Data Ram Size: 352 B
• Interface Type: SCI, SPI
• Maximum Clock Frequency: 2.1 MHz
• Number Of Programmable I/os: 31
• Number Of Timers: 1
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8 bit
• Package: 44PQFP
• Family Name: HC05
• Maximum Speed: 2.1 MHz
• Operating Supply Voltage: 3.3|5 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Details

Freescale Semiconductor
RESTORE REGISTERS
FROM STACK:
CCR,A,X,PC
MC68HC05C9A Advance Information Data Sheet, Rev. 4.1
Y
Y
IRQ OR PORT B
Figure 4-1. Interrupt Flowchart
INSTRUCTION
INSTRUCTION
INTERRUPT
EXTERNAL
INSTRUCTION
FROM RESET
INSTRUCTION
INTERRUPT
INTERNAL
FETCH NEXT
INTERRUPT
INTERRUPT
INTERNAL
EXECUTE
INTERNAL
TIMER
IN CCR
SET?
I BIT
SWI
RTI
SPI
SCI
?
?
N
N
N
N
N
N
N
Y
Y
Y
Y
Y
CLEAR IRQ
REQUEST
LATCH
External Interrupt (IRQ or Port B)
TIMER: $3FF8-$3FF9
SWI: $3FFC-$3FFD
LOAD PC FROM:
IRQ: $3FFA-$3FFB
SCI: $3FF6-$3FF7
SPI: $3FF4-$3FF5
CC REGISTER
SET I BIT IN
PC,X,A,CCR
STACK
37