MC908SR12CFAE Freescale Semiconductor, MC908SR12CFAE Datasheet - Page 340
![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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MC908SR12CFAE
Manufacturer:
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MC908SR12CFAE
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External Interrupt (IRQ)
19.7 IRQ Registers
19.7.1 IRQ1 Status and Control Register
Data Sheet
340
Address:
Each IRQ is controlled and monitored by an status and control register.
The IRQ1 status and control register (INTSCR1) controls and monitors
operation of IRQ1. The INTSCR1 has the following functions:
IRQ1F — IRQ1 Flag Bit
ACK1 — IRQ1 Interrupt Request Acknowledge Bit
Reset:
Read:
Write:
•
•
•
•
•
•
This read-only status bit is high when the IRQ1 interrupt is pending.
Writing a logic 1 to this write-only bit clears the IRQ1 latch. ACK1
always reads as logic 0. Reset clears ACK1.
Figure 19-4. IRQ1 Status and Control Register (INTSCR1)
1 = IRQ1 interrupt pending
0 = IRQ1 interrupt not pending
IRQ1 Status and Control Register — $001E
IRQ2 Status and Control Register — $001C
Shows the state of the IRQ1 flag
Clears the IRQ1 latch
Masks IRQ1 interrupt request
Controls triggering sensitivity of the IRQ1 interrupt pin
$001E
Bit 7
0
0
External Interrupt (IRQ)
= Unimplemented
6
0
0
5
0
0
MC68HC908SR12•MC68HC08SR12 — Rev. 5.0
4
0
0
IRQ1F
3
0
ACK1
Freescale Semiconductor
2
0
0
IMASK1
1
0
MODE1
Bit 0
0
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