M68HC12B データシートの表示（PDF） - Motorola => Freescale

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M68HC12B

M68HC12 Microcontrollers

Motorola => Freescale 

Freescale Semiconductor, Inc.

General Description

1.2 Features

Features include:

• 16-bit CPU12:

– Upwardly compatible with the M68HC11 instruction set

– Interrupt stacking and programmer’s model identical to the M68HC11

– 20-bit arithmetic logic unit (ALU)

– Instruction queue

– Enhanced indexed addressing

– Fuzzy logic instructions

• Multiplexed bus:

– Single chip or expanded

– 16-bit by 16-bit wide or 16-bit by 8-bit narrow modes

• Memory:

– 32-Kbyte FLASH electrically erasable, programmable read-only

memory (EEPROM) with 2-Kbyte erase-protected boot block —

MC68HC912B32 and MC68HC912BC32 only

– 32-Kbyte ROM — MC68HC12BE32 and MC68HC12BC32 only

– 768-byte EEPROM

– 1-Kbyte random-access memory (RAM) with single-cycle access for

aligned or misaligned read/write

• 8-channel, 10-bit analog-to-digital converter (ATD)

• 8-channel standard timer module (TIM) — MC68HC912B32 and

MC68HC(9)12BC32 only:

– Each channel fully configurable as either input capture or output

compare

– Simple pulse-width modulator (PWM) mode

– Modulus reset of timer counter

• Enhanced capture timer (ECT) — MC68HC12BE32 only:

– 16-bit main counter with 7-bit prescaler

– Eight programmable input capture or output compare channels; four of

the eight input captures with buffer

– Input capture filters and buffers, three successive captures on four

channels, or two captures on four channels with a capture/compare

selectable on the remaining four

– Four 8-bit or two 16-bit pulse accumulators

– 16-bit modulus down-counter with 4-bit prescaler

– Four user-selectable delay counters for signal filtering

Data Sheet

20

General Description

For More Information On This Product,

Go to: www.freescale.com

M68HC12B Family — Rev. 9.0

MOTOROLA

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