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X9251US24I-2.7 Datasheet(PDF) 11 Page - Intersil Corporation |
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X9251US24I-2.7 Datasheet(HTML) 11 Page - Intersil Corporation |
11 / 22 page 11 FN8166.2 September 14, 2005 INSTRUCTION FORMAT Read Wiper Counter Register (WCR) Write Wiper Counter Register (WCR) Read Data Register (DR) Write Data Register (DR) Global Transfer Data Register (DR) to Wiper Counter Register (WCR) Notes: (1) “A1 ~ A0”: stands for the device addresses sent by the master. (2) WPx refers to wiper position data in the Counter Register (2) “I”: stands for the increment operation, SI held HIGH during active SCK phase (high). (3) “D”: stands for the decrement operation, SI held LOW during active SCK phase (high). CS Falling Edge Device Type Identifier Device Addresses Instruction Opcode WCR Addresses Wiper Position (Sent by X9251 on SO) CS Rising Edge 0 1 0 1 0 0 A1 A0 100 100 0 0 W C R 7 W C R 6 W C R 5 W C R 4 W C R 3 W C R 2 W C R 1 W C R 0 CS Falling Edge Device Type Identifier Device Addresses Instruction Opcode WCR Addresses Data Byte (Sent by Host on SI) CS Rising Edge 0 1 0 1 0 0 A1 A0 1 0 1000 0 0 W C R 7 W C R 6 W C R 5 W C R 4 W C R 3 W C R 2 W C R 1 W C R 0 CS Falling Edge Device Type Identifier Device Addresses Instruction Opcode DR and WCR Addresses Data Byte (Sent by X9271 on SO) CS Rising Edge 0 10100 A1 A0 1 0 1 1 RB RA P1 P0 D 7 D 6 D 5 D 4 D 3 D 2 D 1 D 0 CS Falling Edge Device Type Identifier Device Addresses Instruction Opcode DR and WCR Addresses Data Byte (Sent by Host on SI) CS Rising Edge 0 1 0 1 00 A1 A0 11 00 RB RA P1 P0 D 7 D 6 D 5 D 4 D 3 D 2 D 1 D 0 CS Falling Edge Device Type Identifier Device Addresses Instruction Opcode DR Addresses CS Rising Edge 010 100 A1 A0 0 0 0 1 RB RA 0 0 X9251 |
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