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參數(shù)資料
| 型號： | MB89689PF |
| 廠商： | FUJITSU LTD |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | Octal Buffers/Drivers With 3-State Outputs 20-CFP -55 to 125 |
| 中文描述： | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP100 |
| 封裝： | PLASTIC, QFP-100 |
| 文件頁數(shù)： | 17/43頁 |
| 文件大小： | 697K |
| 代理商： | MB89689PF |
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17
MB89680 Series
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 dedicated registers are provided:
Program counter (PC):
A 16-bit register for indicating the 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 which performs 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
Indeterminate
Indeterminate
Indeterminate
Indeterminate
Indeterminate
I-flag = 0, IL1, 0 = 11
The other bit values are indeterminate.
Initial value
Structure of the program status register
Vacancy
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
Vacancy Vacancy
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MB896E | 制造商:IBase Technology (USA) Inc. 功能描述:ITX, SOCKET 479 FOR PENTIUM/CELERON M, 915GME/ICH6M, W/ ICH - Bulk |
| MB896EF | 制造商:IBase Technology (USA) Inc. 功能描述:ITX, SOCKET 479 FOR PENTIUM/CELERON M, 915GME/ICH6M, W/ 88E8 - Bulk |
| MB896F-R | 制造商:IBase Technology (USA) Inc. 功能描述:ITX, SOCKET 479 FOR PENTIUM/CELERON M, 915GM/ICH6M, W/ 88E80 - Bulk |
| MB896HF | 制造商:IBase Technology (USA) Inc. 功能描述:ITX, SOCKET 479 FOR PENTIUM/CELERON M, 915GM/ICH6M, - Bulk |
| MB896-R | 制造商:IBase Technology (USA) Inc. 功能描述:ITX, SOCKET 479 FOR PENTIUM/CELERON M, 915GM/ICH6M, W/ ICH L - Bulk |
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