MC908AZ32ACFU Freescale Semiconductor, MC908AZ32ACFU Datasheet - Page 237

• Manufacturer Part Number: MC908AZ32ACFU
• Description: IC MCU 32K FLASH 8.4MHZ 64-QFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC908AZ32ACFU

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: CAN, SCI, SPI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 40
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 1K 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

Chapter 22
Keyboard Module (KBD)
22.1 Introduction
The keyboard interrupt module (KBD) provides five independently maskable external interrupt pins.
This module is only available on 64-pin package options.
22.2 Features
KBD features include:
Freescale Semiconductor
ENABLE
ENABLE
PULLUP
PULLUP
•
•
•
•
•
KBD0
KBD4
TO
TO
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
KB0IE
KB4IE
.
.
.
Figure 22-1. Keyboard Module Block Diagram
MODEK
MC68HC908AZ32A Data Sheet, Rev. 2
V
DD
D
CK
CLR
Q
INTERRUPT FF
KEYBOARD
RESET
ACKK
IMASKK
VECTOR FETCH
INTERNAL BUS
DECODER
SYNCHRONIZER
KEYF
KEYBOARD
INTERRUPT
REQUEST
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