MC908SR12MFAER Freescale Semiconductor, MC908SR12MFAER Datasheet - Page 337
MC908SR12MFAER
Manufacturer Part Number
MC908SR12MFAER
Description
IC MCU 12K FLASH 4/8MHZ 48-LQFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908SR12MFAE.pdf
(404 pages)
Specifications of MC908SR12MFAER
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)
4.5 V ~ 5.5 V
Data Converters
A/D 14x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
48-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Other names
MC908SR12MFAER
MC908SR12MFAERTR
MC908SR12MFAERTR
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC908SR12MFAER
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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MC68HC908SR12•MC68HC08SR12 — Rev. 5.0
Freescale Semiconductor
IRQ1
DECODER
NOTE:
VECTOR
V
FETCH
RESET
DD
ACK1
INTERNAL
PULLUP
DEVICE
When an interrupt pin is edge-triggered only, the interrupt remains set
until a vector fetch, software clear, or reset occurs.
When an interrupt pin is both falling-edge and low-level-triggered, the
interrupt remains set until both of the following occur:
The vector fetch or software clear may occur before or after the interrupt
pin returns to logic 1. As long as the pin is low, the interrupt request
remains pending. A reset will clear the latch and the MODE1 control bit,
thereby clearing the interrupt even if the pin stays low.
When set, the IMASK bit in the INTSCR mask all external interrupt
requests. A latched interrupt request is not presented to the interrupt
priority logic unless the IMASK bit is clear.
The interrupt mask (I) in the condition code register (CCR) masks all
interrupt requests, including external interrupt requests.
•
•
MODE1
V
DD
Vector fetch or software clear
Return of the interrupt pin to logic 1
Figure 19-2. IRQ1 Block Diagram
D
CK
IRQ1
CLR
FF
Q
External Interrupt (IRQ)
IMASK1
SYNCHRO-
VOLTAGE
DETECT
NIZER
HIGH
IRQ1F
External Interrupt (IRQ)
Functional Description
TO CPU FOR
BIL/BIH
INSTRUCTIONS
IRQ1
INTERRUPT
REQUEST
TO MODE
SELECT
LOGIC
Data Sheet
337
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