MC705C8ABE Freescale Semiconductor, MC705C8ABE Datasheet - Page 154

• Manufacturer Part Number: MC705C8ABE
• Description: IC MCU 8BIT 42-SDIP
• Manufacturer: Freescale Semiconductor
• Series: HC05r

Specifications of MC705C8ABE

• 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)
• Processor Series: HC705C
• Core: HC05
• Data Bus Width: 8 bit
• Data Ram Size: 304 B
• Interface Type: SCI, SPI
• Maximum Clock Frequency: 2.1 MHz
• Number Of Programmable I/os: 24
• Number Of Timers: 1
• Mounting Style: Through Hole
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Details

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