MC908AZ60ACFU Freescale Semiconductor, MC908AZ60ACFU Datasheet - Page 301
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MC908AZ60ACFU
Manufacturer Part Number
MC908AZ60ACFU
Description
IC MCU FLASH 8.4MHZ 60K 64QFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908AZ60ACFUER.pdf
(414 pages)
Specifications of MC908AZ60ACFU
Core Processor
HC08
Core Size
8-Bit
Speed
8.4MHz
Connectivity
CAN, SCI, SPI
Peripherals
LVD, POR, PWM
Number Of I /o
52
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
64-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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Chapter 24
Keyboard Module (KBI)
24.1 Introduction
The keyboard interrupt module (KBD) provides five independently maskable external interrupt pins.
This module is only available on 64-pin package options.
24.2 Features
KBD features include:
24.3 Functional Description
Writing to the KBIE4–KBIE0 bits in the keyboard interrupt enable register independently enables or
disables each port G or port H pin as a keyboard interrupt pin. Enabling a keyboard interrupt pin also
enables its internal pullup device. A low level applied to an enabled keyboard interrupt pin latches a
keyboard interrupt request.
A keyboard interrupt is latched when one or more keyboard pins goes low after all were high. The MODEK
bit in the keyboard status and control register controls the triggering mode of the keyboard interrupt.
Freescale Semiconductor
•
•
•
•
•
•
•
Five Keyboard Interrupt Pins with Separate Keyboard Interrupt Enable Bits and One Keyboard
Interrupt Mask
Hysteresis Buffers
Programmable Edge-Only or Edge- and Level- Interrupt Sensitivity
Automatic Interrupt Acknowledge
Exit from Low-Power Modes
If the keyboard interrupt is edge-sensitive only, a falling edge on a keyboard pin does not latch an
interrupt request if another keyboard pin is already low. To prevent losing an interrupt request on
one pin because another pin is still low, software can disable the latter pin while it is low.
If the keyboard interrupt is falling edge- and low level-sensitive, an interrupt request is present as
long as any keyboard pin is low.
MC68HC908AZ60A • MC68HC908AS60A • MC68HC908AS60E Data Sheet, Rev. 6
301
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