mc68hc912bd32 Freescale Semiconductor, Inc, mc68hc912bd32 Datasheet - Page 15
mc68hc912bd32
Manufacturer Part Number
mc68hc912bd32
Description
16-bit Device Composed Of Standard On-chip Peripherals
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC68HC912BD32.pdf
(292 pages)
- Current page: 15 of 292
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1-cpu
Contents
Introduction
Programming Model
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Programming Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Data Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Addressing Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Indexed Addressing Modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Opcodes and Operands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
The CPU12 is a high-speed, 16-bit processing unit. It has full 16-bit data
paths and wider internal registers (up to 20 bits) for high-speed extended
math instructions. The instruction set is a proper superset of the
M68HC11instruction set. The CPU12 allows instructions with odd byte
counts, including many single-byte instructions. This provides efficient
use of ROM space. An instruction queue buffers program information so
the CPU always has immediate access to at least three bytes of machine
code at the start of every instruction. The CPU12 also offers an
extensive set of indexed addressing capabilities.
CPU12 registers are an integral part of the CPU and are not addressed
as if they were memory locations.
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
Central Processing Unit
Central Processing Unit
Central Processing Unit
MC68HC912BD32 Rev 1.0
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