ST10R272L STMicroelectronics, ST10R272L Datasheet - Page 15

• Manufacturer Part Number: ST10R272L
• Description: 16-BIT Romless MCU WITH MAC UNIT
• Manufacturer: STMicroelectronics

Specifications of ST10R272L

• Cpu Frequency: 0 to 50 MHz
• Power: 3.3 Volt +/-0.3V

5.1
Enhanced addressing capabilities
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General
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Program control
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Double indirect addressing mode with pointer post-modification.
Parallel Data Move allows one operand move during Multiply-Accumulate instructions
without penalty.
CoSTORE instruction (for fast access to the MAC SFRs) and CoMOV (for fast memory to
memory table transfer).
Two-cycle execution for all MAC operations.
16 x 16 signed/unsigned parallel multiplier.
40-bit signed arithmetic unit with automatic saturation mode.
40-bit accumulator.
8-bit left/right shifter.
Scaler (one-bit left shifter)
Data limiter
Full instruction set with multiply and multiply-accumulate, 32-bit signed arithmetic and
compare instructions.
Three 16-bit status and control registers: MSW: MAC Status Word, MCW: MAC Control
Word, MRW: MAC Repeat Word.
Repeat Unit allows some MAC co-processor instructions to be repeated up to 8192 times.
Repeated instructions may be interrupted.
MAC interrupt (Class B Trap) on MAC condition flags.
MAC Features
ST10R272L - MULTIPLY-ACCUMULATE UNIT (MAC)
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