MC908AS60ACFN Freescale Semiconductor, MC908AS60ACFN Datasheet - Page 171
MC908AS60ACFN
Manufacturer Part Number
MC908AS60ACFN
Description
IC MCU 60K FLASH 8.4MHZ 52PLCC
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908AZ60ACFUER.pdf
(414 pages)
Specifications of MC908AS60ACFN
Core Processor
HC08
Core Size
8-Bit
Speed
8.4MHz
Connectivity
CAN, SCI, SPI
Peripherals
LVD, POR, PWM
Number Of I /o
42
Program Memory Size
60KB (60K x 8)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 15x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
52-PLCC
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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Chapter 17
External Interrupt Module (IRQ)
17.1 Introduction
This chapter describes the nonmaskable external interrupt (IRQ) input.
17.2 Features
Features include:
17.3 Functional Description
A falling edge applied to the external interrupt pin can latch a CPU interrupt request.
the structure of the IRQ module.
Interrupt signals on the IRQ pin are latched into the IRQ latch. An interrupt latch remains set until one of
the following actions occurs:
Freescale Semiconductor
•
•
•
•
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Dedicated External Interrupt Pin (IRQ)
Hysteresis Buffer
Programmable Edge-Only or Edge- and Level-Interrupt Sensitivity
Automatic Interrupt Acknowledge
Vector fetch — A vector fetch automatically generates an interrupt acknowledge signal that clears
the latch that caused the vector fetch.
Software clear — Software can clear an interrupt latch by writing to the appropriate acknowledge
bit in the interrupt status and control register (ISCR). Writing a logic 1 to the ACK bit clears the IRQ
latch.
Reset — A reset automatically clears both interrupt latches.
MC68HC908AZ60A • MC68HC908AS60A • MC68HC908AS60E Data Sheet, Rev. 6
Figure 17-1
shows
171
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