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參數(shù)資料
型號(hào)： TS80C31X2-MCED
廠商： TEMIC SEMICONDUCTORS
英文描述： 8-bit CMOS Microcontroller 0-60 MHz
中文描述： 8位CMOS微控制器0-60兆赫
文件頁(yè)數(shù)： 6/40頁(yè)
文件大小： 484K
代理商： TS80C31X2-MCED
6
Rev. A - Mar. 19, 1999
Preliminary
TS80C31X2
6. TS80C31X2 Enhanced Features
In comparison to the original 80C31, the TS80C31X2 implements some new features, which are
:
The X2 option.
The Dual Data Pointer.
The 4 level interrupt priority system.
The power-off flag.
The ONCE mode.
Enhanced UART
6.1 X2 Feature
The TS80C31X2 core needs only 6 clock periods per machine cycle. This feature called ”X2” provides the following
advantages:
G
Divide frequency crystals by 2 (cheaper crystals) while keeping same CPU power.
G
Save power consumption while keeping same CPU power (oscillator power saving).
G
Save power consumption by dividing dynamically operating frequency by 2 in operating and idle modes.
G
Increase CPU power by 2 while keeping same crystal frequency.
In order to keep the original C51 compatibility, a divider by 2 is inserted between the XTAL1 signal and the main
clock input of the core (phase generator). This divider may be disabled by software.
6.1.1 Description
The clock for the whole circuit and peripheral is first divided by two before being used by the CPU core and
peripherals. This allows any cyclic ratio to be accepted on XTAL1 input. In X2 mode, as this divider is bypassed,
the signals on XTAL1 must have a cyclic ratio between 40 to 60%. Figure 1. shows the clock generation block
diagram. X2 bit is validated on XTAL1
÷
2 rising edge to avoid glitches when switching from X2 to STD mode.
Figure 2. shows the mode switching waveforms.
Figure 1. Clock Generation Diagram
XTAL1
2
CKCON reg
X2
state machine: 6 clock cycles.
CPU control
F
OSC
F
XTAL
0
1
XTAL1:2
相關(guān)PDF資料
PDF描述
TS80C31X2-MCER 8-bit CMOS Microcontroller 0-60 MHz
TS80C31X2-MIBB 8-bit CMOS Microcontroller 0-60 MHz
TS80C31X2-MIBD 8-bit CMOS Microcontroller 0-60 MHz
TS80C31X2-MIBR 8-bit CMOS Microcontroller 0-60 MHz
TS80C31X2-MICB 8-bit CMOS Microcontroller 0-60 MHz
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TS80C31X2-MCER 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit CMOS Microcontroller ROMless
TS80C31X2-MIA 功能描述:IC MCU 8BIT 40/20MHZ 40-DIP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:80C 標(biāo)準(zhǔn)包裝:9 系列:87C 核心處理器:8051 芯體尺寸:8-位 速度:40/20MHz 連通性:UART/USART 外圍設(shè)備:POR，WDT 輸入/輸出數(shù):32 程序存儲(chǔ)器容量:32KB（32K x 8） 程序存儲(chǔ)器類型:OTP EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4.5 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:- 振蕩器型:內(nèi)部 工作溫度:0°C ~ 70°C 封裝/外殼:40-DIP（0.600"，15.24mm） 包裝:管件
TS80C31X2-MIAB 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:8-bit CMOS Microcontroller 0-60 MHz
TS80C31X2-MIAD 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:8-bit CMOS Microcontroller 0-60 MHz
TS80C31X2-MIAR 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:8-bit CMOS Microcontroller 0-60 MHz
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