MC68HC908SR12CFA Freescale Semiconductor, MC68HC908SR12CFA Datasheet - Page 343

• Manufacturer Part Number: MC68HC908SR12CFA
• Description: MICROCONTROLLER 48 PIN
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908SR12CFA

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: I²C, SCI
• Peripherals: LVD, POR, PWM, Temp Sensor
• Number Of I /o: 31
• Program Memory Size: 12KB (12K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 14x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 48-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: Q1145673

20.1 Contents
20.2 Introduction
MC68HC908SR12•MC68HC08SR12 — Rev. 5.0
Freescale Semiconductor
Data Sheet — MC68HC908SR12•MC68HC08SR12
Section 20. Keyboard Interrupt Module (KBI)
20.2
20.3
20.4
20.5
20.5.1
20.6
20.6.1
20.6.2
20.7
20.7.1
20.7.2
20.10 Keyboard Module During Break Interrupts . . . . . . . . . . . . . . . 350
The keyboard interrupt module (KBI) provides eight independently
maskable external interrupts which are accessible via PTD0–PTD7.
When a port pin is enabled for keyboard interrupt function, an internal
30kΩ pullup device is also enabled on the pin.
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 343
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 344
I/O Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 344
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .345
Keyboard Interrupt Registers . . . . . . . . . . . . . . . . . . . . . . . . . 347
Low-Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 349
Keyboard Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . 347
Keyboard Status and Control Register. . . . . . . . . . . . . . . . 348
Keyboard Interrupt Enable Register . . . . . . . . . . . . . . . . . . 349
Wait Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .349
Stop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .349
Keyboard Interrupt Module (KBI)
Data Sheet
343