MC908MR8MPE Freescale Semiconductor, MC908MR8MPE Datasheet - Page 299
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MC908MR8MPE
Manufacturer Part Number
MC908MR8MPE
Description
IC MCU 8BIT 8K FLASH 28-PDIP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MCHC908MR8VFAE.pdf
(372 pages)
Specifications of MC908MR8MPE
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
SCI
Peripherals
LVD, POR, PWM
Number Of I /o
12
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 4x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
28-DIP (0.600", 15.24mm)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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MC68HC908MR8 — Rev 4.1
Freescale Semiconductor
NOTE:
The external interrupt pins are falling-edge-triggered and are
software-configurable to be both falling-edge and low-level-triggered.
The MODE1 bit in the ISCR controls the triggering sensitivity of the IRQ
pin.
When the interrupt pin is edge-triggered only, the interrupt latch remains
set until a vector fetch, software clear, or reset occurs.
When the interrupt pin is both falling-edge and low-level-triggered, the
interrupt latch remains set until both of these occur:
The vector fetch or software clear can occur before or after the interrupt
pin returns to logic 1. As long as the pin is low, the interrupt request
remains pending.
When set, the IMASK1 bit in the ISCR 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.
See
•
•
Figure
Vector fetch, software clear, or reset
Return of the interrupt pin to logic 1
16-3.
External Interrupt (IRQ)
External Interrupt (IRQ)
Functional Description
Technical Data
299
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