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您現在的位置：買賣IC網 > PDF目錄365958 > TS80C31X2-MIED 8-bit CMOS Microcontroller 0-60 MHz PDF資料下載

參數資料

型號：	TS80C31X2-MIED
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
文件頁數：	24/40頁
文件大小：	484K
代理商：	TS80C31X2-MIED

Rev. A - Mar. 19, 1999

Preliminary

TS80C31X2

6.7 ONCE Mode (ON Chip Emulation)

The ONCE mode facilitates testing and debugging of systems using TS80C31X2 without removing the circuit from

the board. The ONCE mode is invoked by driving certain pins of the TS80C31X2; the following sequence must

be exercised:

Pull ALE low while the device is in reset (RST high) and PSEN is high.

Hold ALE low as RST is deactivated.

While the TS80C31X2 is in ONCE mode, an emulator or test CPU can be used to drive the circuit Table 26.

shows the status of the port pins during ONCE mode.

Normal operation is restored when normal reset is applied.

Table 12. External Pin Status during ONCE Mode

ALE

PSEN

Port 0

Port 1

Port 2

Port 3

XTAL1/2

Weak pull-up

Float

Weak pull-up

Active

相關PDF資料	PDF描述
TS80C31X2-MIER	8-bit CMOS Microcontroller 0-60 MHz
TS80C31X2-VCBB	8-bit CMOS Microcontroller 0-60 MHz
TS80C31X2-VCBD	8-bit CMOS Microcontroller 0-60 MHz
TS80C31X2-VCBR	8-bit CMOS Microcontroller 0-60 MHz
TS80C31X2-VCCB	8-bit CMOS Microcontroller 0-60 MHz

相關代理商/技術參數	參數描述
TS80C31X2-MIER	制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:8-bit CMOS Microcontroller 0-60 MHz
TS80C31X2-MLAB	制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit CMOS Microcontroller ROMless
TS80C31X2-MLAD	制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit CMOS Microcontroller ROMless
TS80C31X2-MLAR	制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit CMOS Microcontroller ROMless
TS80C31X2-MLBB	制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit CMOS Microcontroller ROMless

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