MC68HC908JB8JDW Freescale Semiconductor, MC68HC908JB8JDW Datasheet - Page 227

• Manufacturer Part Number: MC68HC908JB8JDW
• Description: IC MCU 8K FLASH 3MHZ 20-SOIC
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908JB8JDW

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 3MHz
• Connectivity: USB
• Peripherals: LVD, POR, PWM
• Number Of I /o: 13
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 20-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -

Technical Data — MC68HC908JB8•MC68HC08JB8•MC68HC08JT8
14.1 Contents
14.2 Introduction
MC68HC908JB8•MC68HC08JB8•MC68HC08JT8 — Rev. 2.3
Freescale Semiconductor
Section 14. Keyboard Interrupt Module (KBI)
14.2
14.3
14.4
14.5
14.6
14.7
14.7.1
14.7.2
14.8
14.9
14.9.1
14.9.2
The keyboard interrupt module (KBI) provides eight independently
maskable external interrupts which are accessible via PTA0–PTA7 pins.
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228
Keyboard Initialization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231
Low-Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232
Keyboard Module During Break Interrupts . . . . . . . . . . . . . . . 233
Pin Name Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .230
I/O Registers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233
Wait Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .232
Stop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .232
Keyboard Status and Control Register. . . . . . . . . . . . . . . . 233
Keyboard Interrupt Enable Register . . . . . . . . . . . . . . . . . . 235
Keyboard Interrupt Module (KBI)
Technical Data
227