MCR908JK1CDWE Freescale Semiconductor, MCR908JK1CDWE Datasheet - Page 85

• Manufacturer Part Number: MCR908JK1CDWE
• Description: IC MCU 1.5K FLASH 20-SOIC
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MCR908JK1CDWE

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Peripherals: LED, LVD, POR, PWM
• Number Of I /o: 14
• Program Memory Size: 1.5KB (1.5K x 8)
• Program Memory Type: FLASH
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.3 V
• Data Converters: A/D 12x8b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Connectivity: -

7.6.1.1 Hardware Interrupts
MC68H(R)C908JL3
Freescale Semiconductor
INTERRUPT
INTERRUPT
MODULE
MODULE
I BIT
I BIT
R/W
R/W
IDB
IDB
IAB
IAB
—
DUMMY
Rev. 1.1
DUMMY
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.
7-10
A hardware interrupt does not stop the current instruction. Processing of
a hardware interrupt begins after completion of the current instruction.
When the current instruction is complete, the SIM checks all pending
hardware interrupts. If interrupts are not masked (I bit clear in the
condition code register), and if the corresponding interrupt enable bit is
SP – 4
SP
PC – 1[7:0] PC – 1[15:8]
shows interrupt recovery timing.
CCR
Figure 7-10. Interrupt Recovery
SP – 1
SP – 3
Figure 7-9
System Integration Module (SIM)
A
SP – 2
SP – 2
.
X
Interrupt Entry
X
SP – 3
Figure 7-9
SP – 1
PC – 1[7:0] PC – 1[15:8] OPCODE
A
SP – 4
SP
shows interrupt entry timing.
CCR
VECT H
PC
V DATA H
System Integration Module (SIM)
VECT L
PC + 1
OPERAND
V DATA L
START ADDR
OPCODE
Technical Data
Figure
83