參數(shù)資料
型號(hào): TS87C51RD2-VCBD
元件分類: 8位微控制器
英文描述: 8-BIT MICROCONTROLLER
中文描述: 8位微控制器
文件頁數(shù): 46/74頁
文件大?。?/td> 689K
代理商: TS87C51RD2-VCBD
50
Rev. C - 06 March, 2001
TS80C51RA2/RD2
TS83C51RB2/RC2/RD2
TS87C51RB2/RC2/RD2
6.13. Reduced EMI Mode
The ALE signal is used to demultiplex address and data buses on port 0 when used with external program or data
memory. Nevertheless, during internal code execution, ALE signal is still generated. In order to reduce EMI, ALE
signal can be disabled by setting AO bit.
The AO bit is located in AUXR register at bit location 0. As soon as AO is set, ALE is no longer output but
remains active during MOVX and MOVC instructions and external fetches. During ALE disabling, ALE pin is
weakly pulled high.
Table 27. AUXR Register
AUXR - Auxiliary Register (8Eh)
Reset Value = XXXX XX00b
Not bit addressable
7
6
5
4
3
2
1
0
-
EXTRAM
AO
Bit Number
Bit
Mnemonic
Description
7
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
6
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
5
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
4
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
3
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
2
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
1
EXTRAM
EXTRAM bit
0
AO
ALE Output bit
Clear to restore ALE operation during internal fetches.
Set to disable ALE operation during internal fetches.
相關(guān)PDF資料
PDF描述
TS87C51RD2-VCBR 8-BIT MICROCONTROLLER
TS87C51RD2-VCEB 8-BIT MICROCONTROLLER
TS87C51RD2-VCED 8-BIT MICROCONTROLLER
TS87C51RD2-VCLB 8-BIT MICROCONTROLLER
TS87C51RD2-VCLD 8-BIT MICROCONTROLLER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TS87C51RD2-VCBR 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller
TS87C51RD2-VCE 功能描述:IC MCU 8BIT 64K OTP 40MHZ 44VQFP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:87C 標(biāo)準(zhǔn)包裝:1,500 系列:AVR® ATtiny 核心處理器:AVR 芯體尺寸:8-位 速度:16MHz 連通性:I²C,LIN,SPI,UART/USART,USI 外圍設(shè)備:欠壓檢測(cè)/復(fù)位,POR,PWM,溫度傳感器,WDT 輸入/輸出數(shù):16 程序存儲(chǔ)器容量:8KB(4K x 16) 程序存儲(chǔ)器類型:閃存 EEPROM 大小:512 x 8 RAM 容量:512 x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 11x10b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 125°C 封裝/外殼:20-SOIC(0.295",7.50mm 寬) 包裝:帶卷 (TR)
TS87C51RD2-VCEB 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller
TS87C51RD2-VCED 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller
TS87C51RD2-VCER 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Microcontroller