參數(shù)資料
型號： TLC157
廠商： Electronic Theatre Controls, Inc.
英文描述： EPROM/ROM-Based 8-Bit Microcontroller Series
中文描述： 存儲器/基于ROM的8位微控制器系列
文件頁數(shù)： 23/50頁
文件大?。?/td> 552K
代理商： TLC157
2.7 Hexadecimal Convert to Decimal (HCD)
Decimal format is another number format for TLC156. 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”
2.8 Oscillator Configurations
TLC156 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
XT: Crystal/Resonator Oscillator
HF: High Frequency Crystal/Resonator Oscillator
RC: Resistor/Capacitor Oscillator
In LF, XT, or HF modes, a crystal or ceramic resonator in connected to the OSCI and OSCO pins to establish
oscillation. When in LF, XT, or HF modes, the devices can have an external clock source drive the OSCI pin.
The RC 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.
TLC
TLC156
Rev0.95 Nov 20, 2003
P.2/TLC156
相關(guān)PDF資料
PDF描述
TLC157D EPROM/ROM-Based 8-Bit Microcontroller Series
TLC157M EPROM/ROM-Based 8-Bit Microcontroller Series
TLC157P EPROM/ROM-Based 8-Bit Microcontroller Series
TLC157R EPROM/ROM-Based 8-Bit Microcontroller Series
TLC154ED EPROM/ROM-Based 8-Bit Microcontroller Series
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TLC157D 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 Series
TLC157ED 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 Series
TLC157EM 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 Series
TLC157EP 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 Series
TLC157ER 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 Series
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