MCHC908GR8AVFAE Freescale Semiconductor, MCHC908GR8AVFAE Datasheet - Page 164

• Manufacturer Part Number: MCHC908GR8AVFAE
• Description: IC MCU 8K FLASH 8MHZ 32-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MCHC908GR8AVFAE

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 21
• Program Memory Size: 7.5KB (7.5K x 8)
• Program Memory Type: FLASH
• Ram Size: 384 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 6x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 32-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

System Integration Module (SIM)
14.5.1 Interrupts
At the beginning of an interrupt, the CPU saves the CPU register contents on the stack and sets the
interrupt mask (I bit) to prevent additional interrupts. At the end of an interrupt, the RTI instruction recovers
the CPU register contents from the stack so that normal processing can resume.
interrupt entry timing.
164
INTERRUPT
I BIT
INTERRUPT
R/W
I BIT
IDB
R/W
IAB
IDB
IAB
MODULE
MODULE
DUMMY
DUMMY
Figure 14-9
SP – 4
SP
MC68HC908GR8A • MC68HC908GR4A Data Sheet, Rev. 5
PC – 1[7:0] PC – 1[15:8]
CCR
Figure 14-9. Interrupt Recovery Timing
Figure 14-8
SP – 3
shows interrupt recovery timing.
SP – 1
A
SP – 2
SP – 2
.
Interrupt Entry Timing
X
X
SP – 1
SP – 3
PC – 1 [7:0] PC – 1 [15:8] OPCODE
A
SP – 4
SP
CCR
VECT H
PC
V DATA H
PC + 1
VECT L
OPERAND
V DATA L
Figure 14-8
START ADDR
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OPCODE
shows