X9241AMPIZ datasheet(6/17 Pages) RENESAS

6 / 17 page

X9241A

FN8164 Rev 7.00

Page 6 of 17

August 17, 2015

NOTES:

1. 1/0 = data is one or zero

2. X = Not applicable or don’t care; that is, a data register is not involved in the operation and need not be addressed (typical).

SCL

SDA

VW/RW

INC/DEC

CMD

ISSUED

VOLTAGE OUT

tCLWV

FIGURE 6. INCREMENT/DECREMENT TIMING LIMITS

TABLE 1. INSTRUCTION SET

INSTRUCTION

INSTRUCTION FORMAT

OPERATION

Read WCR

1/0

(Note 1)

1/0

(Note 2)

Read the contents of the Wiper Counter Register pointed to by P1 to P0

Write WCR

1/0

Write new value to the Wiper Counter Register pointed to by P1 to P0

Read Data

1/0

Read the contents of the Register pointed to by P1 to P0 and R1 to R0

Write Data

1/0

Write new value to the Register pointed to by P1 to P0 and R1 to R0

XFR Data

1/0

Transfer the contents of the Register pointed to by P1 to P0 and R1 to

R0 to its associated WCR

XFR WCR to

Data Register

1/0

Transfer the contents of the WCR pointed to by P1 to P0 to the Register

pointed to by R1 to R0

Global XFR

Data Register to

WCR

1/0

Transfer the contents of the Data Registers pointed to by R1 to R0 of all

four pots to their respective WCR

Global XFR

WCR to Data

1/0

Transfer the contents of all WCRs to their respective data Registers

pointed to by R1 to R0 of all four pots

Increment/

Decrement

Wiper

1/0

Enable Increment/decrement of the WCR pointed to by P1 to P0

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