- 您現在的位置：買賣IC網 > PDF目錄375853 > FM8P51 (Electronic Theatre Controls, Inc.) EPROM/ROM-Based 8-Bit Microcontroller PDF資料下載
參數資料
| 型號： | FM8P51 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | EPROM/ROM-Based 8-Bit Microcontroller |
| 中文描述： | 存儲器/基于ROM的8位微控制器 |
| 文件頁數： | 41/60頁 |
| 文件大?。?/td> | 369K |
| 代理商： | FM8P51 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁當前第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁
FM8P51
Rev1.2 Mar 15, 2005
P.41/FM8P51
FEELING
TECHNOLOGY
2.13 Hexadecimal Convert to Decimal (HCD)
Decimal format is another number format for FM8P51 series. When the content of the data memory has been
assigned as decimal format, it is necessary to convert the results to decimal format after the execution of ALU
instructions. When the decimal converting operation is processing, all of the operand data (including the contents of
the data memory (RAM), accumulator (ACC), immediate data, and look-up table) should be in the decimal format, or
the results of conversion will be incorrect.
Instruction DAA can convert the ACC data from hexadecimal to decimal format after any addition operation and
restored to ACC.
The conversion operation is illustrated in example 2.2.
EXAMPLE 2.2: DAA CONVERSION
MOVIA
90h
;Set immediate data = decimal format number “90” (ACC
90h)
MOVAR
30h
;Load immediate data “90” to data memory address 30H
MOVIA
10h
;Set immediate data = decimal format number “10” (ACC
10h)
ADDAR
30h, 0
;Contents of the data memory address 30H and ACC are binary-added
;the result loads to the ACC (ACC
A0h, C
0)
DAA
;Convert the content of ACC to decimal format, and restored to ACC
;The result in the ACC is “00” and the carry bit C is “1”. This represents the
;decimal number “100”
Instruction DAS can convert the ACC data from hexadecimal to decimal format after any subtraction
operation and restored to ACC.
The conversion operation is illustrated in example 2.3.
EXAMPLE 2.3: DAS CONVERSION
MOVIA
10h
;Set immediate data = decimal format number “10” (ACC
10h)
MOVAR
30h
;Load immediate data “10” to data memory address 30H
MOVIA
20h
;Set immediate data = decimal format number “20” (ACC
20h)
SUBAR
30h, 0
;Contents of the data memory address 30H and ACC are binary-subtracted
;the result loads to the ACC (ACC
F0h, C
0)
DAS
;Convert the content of ACC to decimal format, and restored to ACC
;The result in the ACC is “90” and the carry bit C is “0”. This represents the
;decimal number “ -10”
2.14 Oscillator Configurations
FM8P51 series can be operated in four different oscillator modes. Users can program two configuration bits
(Fosc<1:0>) to select the appropriate modes:
LF: Low Frequency Crystal Oscillator
HF: High Frequency Crystal/Resonator Oscillator
ERIC: External Resistor/Internal Capacitor Oscillator
ERC: External Resistor/Capacitor Oscillator
In LF, or HF modes, a crystal or ceramic resonator in connected to the OSCI and OSCO pins to establish oscillation.
When in LF, or HF modes, the devices can have an external clock source drive the OSCI pin.
The ERC/ERIC device option offers additional cost savings for timing insensitive applications. The RC oscillator
frequency is a function of the supply voltage, the resistor (Rext) and capacitor (Cext), the operating temperature,
and the process parameter.
相關PDF資料 |
PDF描述 |
|---|---|
| FM8P51EF | EPROM/ROM-Based 8-Bit Microcontroller |
| FM8P51EP | EPROM/ROM-Based 8-Bit Microcontroller |
| FM8P51F | EPROM/ROM-Based 8-Bit Microcontroller |
| FM8P51P | EPROM/ROM-Based 8-Bit Microcontroller |
| FM8P51E | EPROM/ROM-Based 8-Bit Microcontroller |
相關代理商/技術參數 |
參數描述 |
|---|---|
| FM8P51E | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:EPROM/ROM-Based 8-Bit Microcontroller |
| FM8P51EF | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:EPROM/ROM-Based 8-Bit Microcontroller |
| FM8P51EP | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:EPROM/ROM-Based 8-Bit Microcontroller |
| FM8P51F | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:EPROM/ROM-Based 8-Bit Microcontroller |
| FM8P51P | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:EPROM/ROM-Based 8-Bit Microcontroller |
發布緊急采購，3分鐘左右您將得到回復。