MC68HC705C8ACFB Freescale Semiconductor, MC68HC705C8ACFB Datasheet - Page 77

• Manufacturer Part Number: MC68HC705C8ACFB
• Description: IC MCU 8K 4MHZ OTP 44-QFP
• Manufacturer: Freescale Semiconductor
• Series: HC05r

Specifications of MC68HC705C8ACFB

• Core Processor: HC05
• Core Size: 8-Bit
• Speed: 2.1MHz
• Connectivity: SCI, SPI
• Peripherals: POR, WDT
• Number Of I /o: 24
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: OTP
• Ram Size: 304 x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -

7.1 Contents
7.2 Introduction
MC68HC705C8A — Rev. 3
MOTOROLA
Technical Data — MC68HC705C8A
7.2
7.3
7.3.1
7.3.2
7.3.3
7.4
7.4.1
7.4.2
7.4.3
7.5
7.5.1
7.5.2
7.5.3
7.6
This section describes the programming of ports A, B, C, and D.
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For More Information On This Product,
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Port A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Port B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Port C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Port D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Port A Data Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Data Direction Register A. . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Port A Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Port B Data Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Data Direction Register B. . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Port B Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Port C Data Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Data Direction Register C. . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Port C Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Section 7. Parallel Input/Output (I/O)
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Parallel Input/Output (I/O)
Technical Data
77