TS80C54_14 datasheet(11/62 Pages) ATMEL

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TS80C54 Datasheet(PDF) 11 Page - ATMEL Corporation

No. de pieza	TS80C54

Descripción Electrónicos	Programmable Clock Out and Up/Down Timer/Counter 2

Download	62 Pages

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Fabricante Electrónico	ATMEL [ATMEL Corporation]

Página de inicio	http://www.atmel.com

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11 / 62 page

4431E–8051–04/06

AT/TS8xC54/8X2

Dual Data Pointer Register Ddptr

The additional data pointer can be used to speed up code execution and reduce code size in a

number of ways.

The dual DPTR structure is a way by which the chip will specify the address of an external data

memory location. There are two 16-bit DPTR registers that address the external memory, and a

single bit called

DPS = AUXR1/bit0 (See Table 7-1.) that allows the program code to switch between them

(Refer to Figure 7-1).

Figure 7-1.

Use of Dual Pointer

External Data Memory

AUXR1(A2H)

DPS

DPH(83H) DPL(82H)

DPTR0

DPTR1

Fabricante Electrónico	No. de pieza	Datasheet	Descripción Electrónicos
ATMEL Corporation	TS80C54X2	1Mb / 58P	8-bit CMOS Microcontroller 16/32 Kbytes ROM/OTP
TEMIC Semiconductors	TS80C54X2	288Kb / 58P	8-bit CMOS Microcontroller 0-60 MHz
ATMEL Corporation	TS80C54X2XXX-LCA	527Kb / 62P	8-bit CMOS Microcontroller 16/32 Kbytes ROM/OTP
	TS80C54X2XXX-LCB	527Kb / 62P	8-bit CMOS Microcontroller 16/32 Kbytes ROM/OTP
	TS80C54X2XXX-LCC	527Kb / 62P	8-bit CMOS Microcontroller 16/32 Kbytes ROM/OTP

Fabricante Electrónico	No. de pieza	Datasheet	Descripción Electrónicos
ATMEL Corporation	AT87C51RB2	996Kb / 86P	Programmable Clock Out and Up/Down Timer/Counter 2
	TS80C51RA2	996Kb / 86P	Programmable Clock Out and Up/Down Timer/Counter 2
	TS87C54	527Kb / 62P	Programmable Clock Out and Up/Down Timer/Counter 2
	TS87C58X2	527Kb / 62P	Programmable Clock Out and Up/Down Timer/Counter 2
	AT83C51RD2	996Kb / 86P	Programmable Clock Out and Up/Down Timer/Counter 2
	TS80C58X2	527Kb / 62P	Programmable Clock Out and Up/Down Timer/Counter 2
	T83C5101	679Kb / 58P	Programmable Clock Out and Up/Down Timer/Counter 2
	AT87C51RC2	996Kb / 86P	Programmable Clock Out and Up/Down Timer/Counter 2
Exar Corporation	XR-2240	215Kb / 3P	PROGRAMMABLE TIMER / COUNTER
National Semiconductor ...	LM2240	190Kb / 10P	Programmable Timer/Counter

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