T7906EKT-E datasheet(11/43 Pages) ATMEL

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T7906EKT-E Datasheet(PDF) 11 Page - ATMEL Corporation

Part #	T7906EKT-E

Description	Single Point to Point IEEE 1355 High Speed Controller

Download	43 Pages

Scroll/Zoom	100%

Manufacturer	ATMEL [ATMEL Corporation]

Direct Link	http://www.atmel.com

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11 / 43 page

Rev. D - 15 January, 2001

TS80C51U2

TS83C51U2

TS87C51U2

7.2 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 5.) that allows the program code to switch between them (Refer to Figure 3).

Figure 3. Use of Dual Pointer

External Data Memory

AUXR1(A2H)

DPS

DPH(83H) DPL(82H)

DPTR0

DPTR1

Manufacturer	Part #	Datasheet	Description
ATMEL Corporation	T7906EKT-E	339Kb / 42P	Single Point to Point IEEE 1355 High Speed Controller

Manufacturer	Part #	Datasheet	Description
ATMEL Corporation	T7906E	339Kb / 42P	Single Point to Point IEEE 1355 High Speed Controller
	T7906E	555Kb / 43P	Single Point to Point IEEE 1355 High Speed Controller
	TSS901E	292Kb / 31P	Tripple Point to Point IEEE 1355 High Speed Controller
	TSS901E	441Kb / 31P	Triple Point to Point IEEE 1355 High Speed Controller
	AT7912F	361Kb / 21P	Derived from the T7906 Single Point to Point IEEE 1355 High Speed Controller
Analog Devices	HMC442	371Kb / 6P	Point-to-Point and Point-to-Multi-Point Radios
Micross Components	HMC521	883Kb / 9P	Point-to-Point and Point-to-Multi-Point Radio
	HMC525	886Kb / 9P	Point-to-Point and Point-to-Multi-Point Radio
	HMC527	899Kb / 10P	Point-to-Point and Point-to-Multi-Point Radio
Analog Devices	HMC494LP3	370Kb / 6P	Point-to-Point

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