MC68HC908GR16VFJ Freescale Semiconductor, MC68HC908GR16VFJ Datasheet - Page 185

• Manufacturer Part Number: MC68HC908GR16VFJ
• Description: IC MCU 16K FLASH 8MHZ SPI 32LQFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908GR16VFJ

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: LIN, SCI, SPI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 21
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 32-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

15.5.1 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.
Interrupts are latched, and arbitration is performed in the SIM at the start of interrupt processing. The
arbitration result is a constant that the CPU uses to determine which vector to fetch. Once an interrupt is
latched by the SIM, no other interrupt can take precedence, regardless of priority, until the latched
interrupt is serviced (or the I bit is cleared). See
Freescale Semiconductor
MODULE INTERRUPT
I BIT
INTERRUPT
R/W
I BIT
IDB
R/W
IAB
IDB
IAB
MODULE
DUMMY
DUMMY
Figure 15-10
SP – 4
SP
PC – 1[7:0] PC – 1[15:8]
CCR
Figure 15-10. Interrupt Recovery Timing
Figure 15-9
SP – 3
SP – 1
MC68HC908GR16 Data Sheet, Rev. 5.0
shows interrupt recovery timing.
A
SP – 2
SP – 2
.
Interrupt Entry Timing
X
X
Figure
SP – 1
SP – 3
PC – 1 [7:0] PC – 1 [15:8] OPCODE
15-11.
A
SP – 4
SP
CCR
VECT H
PC
V DATA H
PC + 1
VECT L
OPERAND
V DATA L
Figure 15-9
START ADDR
OPCODE
Exception Control
shows
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