X9259TV24Z-2.7 datasheet(8/21 Pages) INTERSIL

Part #	X9259TV24Z-2.7

Description	Single Supply/Low Power/256-Tap/2-Wire bus

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Manufacturer	INTERSIL [Intersil Corporation]

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8

FN8169.2

September 16, 2005

TABLE 3. IDENTIFICATION BYTE FORMAT

TABLE 4. INSTRUCTION BYTE FORMAT

Note:

1/0 = data is one or zero

ID3

ID2

ID1

ID0

A3

A2

A1

A0

0

1

0

1

Logic value of pins A3, A2, A1, and A0

(MSB)

(LSB)

Device Type

Identifier

Slave Address

I3

I2

I1

I0

RB

RA

P1

P0

(MSB)

(LSB)

Instruction

Register

DCP Selection

Opcode

Selection

(WCR Selection)

TABLE 5. INSTRUCTION SET

INSTRUCTION

INSTRUCTION SET

OPERATION

I3

I2

I1

I0

RB

RA

P1

P0

Read Wiper Counter

Register

1

0

1

0

1/0

Read the contents of the Wiper Counter Register

pointed to by P1 - P0

Write Wiper Counter Register

1

0

1

0

1/0

Write new value to the Wiper Counter

Register pointed to by P1 - P0

Read Data Register

1

0

1

1/0

Read the contents of the Data Register pointed to by

P1 - P0 and RB - RA

Write Data Register

1

0

1/0

Write new value to the Data Register

pointed to by P1 - P0 and RB - RA

XFR Data Register to Wiper

Counter Register

1

0

1

1/0

Transfer the contents of the Data Register pointed to

by P1 - P0 and RB - RA to its

associated Wiper Counter Register

XFR Wiper Counter Register to

Data Register

1

0

1/0

Transfer the contents of the Wiper Counter Register

pointed to by P1 - P0 to the Data Register pointed to

by RB - RA

Global XFR Data Registers to Wiper

Counter Registers

0

1

1/0

0

Transfer the contents of the Data Registers pointed to

by RB - RA of all four pots to their respective Wiper

Counter Registers

Global XFR Wiper Counter

Registers to Data Register

1

0

1/0

0

Transfer the contents of both Wiper Counter

Registers to their respective data Registers pointed to

by RB - RA of all four DCPs

Increment/Decrement Wiper

Counter Register

0

1

0

1/0

Enable Increment/decrement of the Control Latch

pointed to by P1 - P0

X9259

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X9259TV24Z-2.7 Datasheet(PDF) 8 Page - Intersil Corporation

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