MC68HC705C8AB Freescale Semiconductor, MC68HC705C8AB Datasheet - Page 154

• Manufacturer Part Number: MC68HC705C8AB
• Description: IC MCU 8K OTP 2.1MHZ 42-SDIP
• Manufacturer: Freescale Semiconductor
• Series: HC05r

Specifications of MC68HC705C8AB

• 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: 0°C ~ 70°C
• Package / Case: 42-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -

Instruction Set
12.2 Introduction
12.3 Addressing Modes
Technical Data
154
The MCU instruction set has 62 instructions and uses eight addressing
modes. The instructions include all those of the M146805 CMOS Family
plus one more: the unsigned multiply (MUL) instruction. The MUL
instruction allows unsigned multiplication of the contents of the
accumulator (A) and the index register (X). The high-order product is
stored in the index register, and the low-order product is stored in the
accumulator.
The CPU uses eight addressing modes for flexibility in accessing data.
The addressing modes provide eight different ways for the CPU to find
the data required to execute an instruction.
The eight addressing modes are:
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Freescale Semiconductor, Inc.
For More Information On This Product,
Inherent
Immediate
Direct
Extended
Indexed, no offset
Indexed, 8-bit offset
Indexed, 16-bit offset
Relative
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Instruction Set
MC68HC705C8A — Rev. 3