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X9259US24-2.7 Datasheet(PDF) 8 Page - Intersil Corporation |
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X9259US24-2.7 Datasheet(HTML) 8 Page - Intersil Corporation |
8 / 21 page 8 FN8169.5 April 13, 2007 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 0 1 0 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 0 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 1/0 1/0 1/0 1/0 Read the contents of the Data Register pointed to by P1 - P0 and RB - RA Write Data Register 1 1 0 0 1/0 1/0 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 1 0 1 1/0 1/0 1/0 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 1 1 0 1/0 1/0 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 0 0 1 1/0 1/0 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 0 0 1/0 1/0 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 0 1 0 0 0 1/0 1/0 Enable Increment/decrement of the Control Latch pointed to by P1 - P0 X9259 |
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