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參數(shù)資料
| 型號： | MB89480 |
| 廠商： | Fujitsu Limited |
| 元件分類： | 8位微控制器 |
| 英文描述： | 8-bit Proprietary Microcontroller |
| 中文描述： | 8位微控制器專有 |
| 文件頁數(shù)： | 21/55頁 |
| 文件大?。?/td> | 477K |
| 代理商： | MB89480 |
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MB89480/480L Series
21
2.
Registers
The F
2
MC-8L family has two types of registers; dedicated registers in the CPU and general-purpose registers
in the memory. The following registers are provided:
Program counter (PC)
: A 16-bit register for indicating instruction storage positions.
Accumulator (A)
: A 16-bit temporary register for storing arithmetic operations, etc. When the
instruction is an 8-bit data processing instruction, the lower byte is used.
Temporary accumulator (T) : A 16-bit register for performing arithmetic operations with the accumulator.
When the instruction is an 8-bit data processing instruction, the lower byte is used.
Index register (IX)
: A 16-bit register for index modification.
Extra pointer (EP)
: A 16-bit pointer for indicating a memory address.
Stack pointer (SP)
: A 16-bit register for indicating a stack area.
Program status (PS)
: A 16-bit register for storing a register pointer, a condition code.
The PS can further be divided into higher 8 bits for use as a register bank pointer (RP) and the lower 8 bits for
use as a condition code register (CCR). (See the diagram below.)
PC
A
T
IX
EP
SP
PS
16 bits
: Program counter
: Accumulator
: Temporary accumulator
: Index register
: Extra pointer
: Stack pointer
: Program status
FFFD
H
Undefined
Undefined
Undefined
Undefined
Undefined
I-flag = 0, IL1, 0 = 11
Other bits are undefined.
Initial value
VacancyVacancyVacancy
H
I
IL1, 0
N
Z
V
C
5
4
RP
PS
10
9
8
7
6
3
2
1
0
15
14
13
12
11
RP
CCR
Structure of the Program Status Register
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MB89480L | 8-bit Proprietary Microcontroller |
| MB89485LPFM | 8-bit Proprietary Microcontroller |
| MB89485LP-SH | 8-bit Proprietary Microcontroller |
| MB89485PFM | 8-bit Proprietary Microcontroller |
| MB89485P-SH | 8-bit Proprietary Microcontroller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MB89480L | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:8-bit Proprietary Microcontroller |
| MB89485 | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:8-bit Proprietary Microcontroller |
| MB89485L | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:8-bit Proprietary Microcontroller |
| MB89485LPFM | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:8-bit Proprietary Microcontroller |
| MB89485LP-SH | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:8-bit Proprietary Microcontroller |
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