X9410 datasheet(7/21 Pages) XICOR

7 / 21 page

X9410

Characteristics subject to change without notice.

7 of 21

REV 1.1 10/6/00

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Figure 8. Increment/Decrement Timing Limits

Table 1. Instruction Set

Instruction

Instruction Set

Operation

R1 R0 P1 P0

Read Wiper Counter

1001000

P0 Read the contents of the Wiper Counter Register

pointed to by P0

Write Wiper Counter

1010000

P0 Write new value to the Wiper Counter Register

pointed to by P0

Read Data Register

0P0 Read the contents of the Data Register pointed to

by P0 and R1–R0

Write Data Register

0P0 Write new value to the Data Register pointed to

by P0 and R1–R0

XFR Data Register to

Wiper Counter Register

1101

0P0 Transfer the contents of the Data Register pointed

to by R1–R0 to the Wiper Counter Register pointed

to by P0

XFR Wiper Counter

1110

0P0 Transfer the contents of the Wiper Counter

to by R1–R0

Global XFR Data Register

to Wiper Counter Register

0001

Transfer the contents of the Data Registers

pointed to by R1–R0 of both pots to their

respective Wiper Counter Register

Global XFR Wiper

Counter Register to Data

1000

Transfer the contents of all Wiper Counter

Registers to their respective data Registers

pointed to by R1–R0 of both pots

Increment/Decrement

Wiper Counter Register

0010000

P0 Enable Increment/decrement of the Wiper

Counter Register pointed to by P0

Read Status (WIP bit)

10001

Read the status of the internal write cycle, by

checking the WIP bit.

SCK

VW/RW

INC/DEC CMD Issued

tWRID

Voltage Out

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