x9400wv24iz-2.7t2 Intersil Corporation, x9400wv24iz-2.7t2 Datasheet - Page 8

• Manufacturer Part Number: x9400wv24iz-2.7t2
• Description: Quad Digitally Controlled Potentiometers Xdcp?
• Manufacturer: Intersil Corporation

Figure 8. Increment/Decrement Timing Limits
Table 1. Instruction Set
Read Wiper Counter Register
Write Wiper Counter Register
Read Data Register
Write Data Register
XFR Data Register to Wiper
Counter Register
XFR Wiper Counter Register
to Data Register
Global XFR Data Register to
Wiper Counter Register
Global XFR Wiper Counter
Register to Data Register
Increment/Decrement Wiper
Counter Register
Read Status (WIP bit)
Instruction
V
W
SCK
/R
SI
W
8
INC/DEC CMD Issued
I
1
1
1
1
1
1
0
1
0
0
3
I
0
0
0
1
1
1
0
0
0
1
2
I
0
1
1
0
0
1
0
0
1
0
Instruction Set
1
I
1
0
1
0
1
0
1
0
0
1
0
Voltage Out
R
R
R
R
R
R
R
0
0
0
0
1
1
1
1
1
1
1
R
R
R
R
R
R
R
0
0
0
0
0
0
0
0
0
0
0
X9400
P
P
P
P
P
P
P
P
0
0
0
1
1
1
1
1
1
1
1
P
P
P
P
P
P
P
P
0
0
1
0
0
0
0
0
0
0
0
Read the contents of the Wiper Counter Register
pointed to by P
Write new value to the Wiper Counter Register
pointed to by P
Read the contents of the Data Register pointed to
by P
Write new value to the Data Register pointed to by
P
Transfer the contents of the Data Register pointed to
by R
P
Transfer the contents of the Wiper Counter
Register pointed to by P
pointed to by R
Transfer the contents of the Data Registers pointed
to by R
Counter Register
Transfer the contents of all Wiper Counter
Registers to their respective data Registers
pointed to by R
Enable Increment/decrement of the Wiper Counter
Register pointed to by P
Read the status of the internal write cycle, by
checking the WIP bit.
1
1
- P
- P
1
1
- R
- P
0
0
1
and R
- R
t
0
WRID
0
to the Wiper Counter Register pointed to by
and R
0
of all four pots to their respective Wiper
1
1
1
1
1
- R
- P
- P
1
- R
- R
- R
0
0
0
Operation
0
0
0
of all four pots
1
1
- P
- P
0
0
to the Register
July 28, 2006
FN8189.3