MC908SR12CFAE Freescale Semiconductor, MC908SR12CFAE Datasheet - Page 152
![IC MCU 12K FLASH 8MHZ 48-LQFP](/photos/12/45/124574/mc908sr12cfae_sml.jpg)
MC908SR12CFAE
Manufacturer Part Number
MC908SR12CFAE
Description
IC MCU 12K FLASH 8MHZ 48-LQFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908SR12MFAE.pdf
(404 pages)
Specifications of MC908SR12CFAE
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
I²C, SCI
Peripherals
LVD, POR, PWM, Temp Sensor
Number Of I /o
31
Program Memory Size
12KB (12K x 8)
Program Memory Type
FLASH
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 14x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
48-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC908SR12CFAE
Manufacturer:
Freescale Semiconductor
Quantity:
135
Company:
Part Number:
MC908SR12CFAE
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Part Number:
MC908SR12CFAE
Manufacturer:
FREESCALE
Quantity:
20 000
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System Integration Module (SIM)
9.6 Exception Control
9.6.1 Interrupts
Data Sheet
152
INTERRUPT
INTERRUPT
MODULE
MODULE
I-BIT
I-BIT
R/W
R/W
IDB
IDB
IAB
IAB
DUMMY
DUMMY
Normal, sequential program execution can be changed in three different
ways:
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.
Figure 9-9
SP – 4
•
•
•
SP
Figure 9-9. Interrupt Recovery Timing
PC – 1[7:0] PC – 1[15:8]
Figure 9-8. Interrupt Entry Timing
Interrupts:
– Maskable hardware CPU interrupts
– Non-maskable software interrupt instruction (SWI)
Reset
Break interrupts
CCR
SP – 1
SP – 3
System Integration Module (SIM)
shows interrupt recovery timing.
A
SP – 2
SP – 2
X
X
Figure 9-8
SP – 3
SP – 1
PC – 1[15:8] PC – 1[7:0]
A
MC68HC908SR12•MC68HC08SR12 — Rev. 5.0
SP – 4
SP
shows interrupt entry timing, and
CCR
VECT H
PC
V DATA H
OPCODE
VECT L
PC + 1
OPERAND
V DATA L
Freescale Semiconductor
START ADDR
OPCODE
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