X9260 INTERSIL [Intersil Corporation], X9260 Datasheet - Page 13

• Manufacturer Part Number: X9260
• Description: Dual Supply/Low Power/256-Tap/SPI bus
• Manufacturer: INTERSIL [Intersil Corporation]

Global Transfer Wiper Counter Register (WCR) to Data Register (DR)
Transfer Wiper Counter Register (WCR) to Data
Register (DR)
Transfer Data Register (DR) to Wiper Counter Reg-
ister (WCR)
Increment/Decrement Wiper Counter Register
(WCR)
Read Status Register (SR)
Notes: (1) “A1 ~ A0”: stands for the device addresses sent by the master.
Falling
Falling
Falling
Falling
Falling
Edge
Edge
Edge
Edge
Edge
CS
CS
CS
CS
CS
(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).
Device Type
Device Type
0 1 0 1 0 0 A1 A0 1 0 0 0 RB RA 0 0
Device Type
Device Type
Device Type
0 1 0 1 0 0 A1 A0 1 1 1 0 RB RA 0 P0
0
0
0
Identifier
Identifier
Identifier
Identifier
Identifier
1
1
1
0
0
0
1 0 0 A1 A0 1 1 0 1 RB RA 0 P0
1 0 0 A1 A0 0 0 1 0 X X 0 P0 I/D I/D
1 0 0 A1 A0 0 1 0 1 0 0 0 1 0
Addresses
Addresses
Addresses
Addresses
Addresses
Device
Device
13
Device
Device
Device
Instruction
Instruction
Instruction
Instruction
Opcode
Opcode
Instruction
Opcode
Opcode
Opcode
DR and WCR
Addresses
DR and WCR
Addresses
Addresses
Addresses
Addresses
WCR
WCR
X9260
DR
Rising
Edge
CS
Rising
Edge
(Sent by Master on SDA)
(Sent by X9260 on SO)
0
Rising
Edge
CS
Increment/Decrement
CS
0
Data Byte
HIGH-VOLTAGE
.
0
WRITE CYCLE
HIGH-VOLTAGE
WRITE CYCLE
.
0
.
0
. I/D I/D
0
WIP
Rising
Rising
Edge
Edge
CS
CS
February 28, 2005
FN8170.0