參數(shù)資料
型號: MC68HC05F4CDW
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 1.789 MHz, MICROCONTROLLER, PDSO28
封裝: SOIC-28
文件頁數(shù): 113/130頁
文件大?。?/td> 10504K
代理商: MC68HC05F4CDW
MC68HC05F4
9-1
CPU CORE AND INSTRUCTION SET
9
CPU CORE AND INSTRUCTION SET
This section provides a description of the CPU core registers, the instruction set and the
addressing modes of the MC68HC05F4.
9.1
Registers
The MCU contains ve registers, as shown in the programming model of Figure 9-1. The interrupt
stacking order is shown in Figure 9-2.
9.1.1
Accumulator (A)
The accumulator is a general purpose 8-bit register used to hold operands and results of
arithmetic calculations or data manipulations.
Figure 9-1 Programming model
Accumulator
Index register
Program counter
Stack pointer
Condition code register
Carry / borrow
Zero
Negative
Interrupt mask
Half carry
70
15
7
0
15
7
0
0 0 0 0 0 0 0 1 1
70
1 1 1 H I N Z C
TPG
79
05F4Book Page 1 Tuesday, August 5, 1997 1:10 pm
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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