MCHC908RF2CFAE Freescale Semiconductor, MCHC908RF2CFAE Datasheet - Page 120
MCHC908RF2CFAE
Manufacturer Part Number
MCHC908RF2CFAE
Description
IC MCU W/UHF TX 2K FLASH 32LQFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC68HC908RF2CFA.pdf
(188 pages)
Specifications of MCHC908RF2CFAE
Core Processor
HC08
Core Size
8-Bit
Speed
4MHz
Peripherals
LVD, POR, PWM, RF Mod
Number Of I /o
12
Program Memory Size
2KB (2K x 8)
Program Memory Type
FLASH
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
32-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Connectivity
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MCHC908RF2CFAE
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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System Integration Module (SIM)
10.5.1 Interrupts
Data Sheet
120
INTERRUPT
MODULE
I BIT
R/W
I BIT
R/W
IDB
IAB
IAB
IDB
INTERRUPT
MODULE
DUMMY
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.
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
SP – 4
SP
PC – 1[7:0]
Freescale Semiconductor, Inc.
Figure 10-9
CCR
For More Information On This Product,
SP – 1
SP – 3
Figure 10-9. Interrupt Recovery
PC – 1[15:8]
Figure 10-8
System Integration Module (SIM)
Go to: www.freescale.com
A
SP – 2
SP – 2
shows interrupt recovery timing.
X
X
.
SP – 3
SP – 1
Interrupt Entry
PC – 1 [15:8]
A
SP – 4
SP
Figure
PC – 1 [7:0]
CCR
VECT H
10-10.)
PC
Figure 10-8
V DATA H
OPCODE
VECT L
PC + 1
OPERAND
V DATA L
MC68HC908RF2 — Rev. 4.0
shows interrupt entry
START ADDR
OPCODE
MOTOROLA
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