X9268 Datasheet, PDF (12/24 Pages) Intersil Corporation – Dual Supply/Low Power/256-Tap/2-Wire Bus

X9268
INSTRUCTION FORMAT
Read Wiper Counter Register (WCR)
S ^{Device Type}
T ^Identifier
Device
Addresses
Instruction
S Opcode
DR/WCR
Wiper Position
Addresses S (Sent by X9268 on SDA) M S
A
R0
T
1
0
A
C
1 A3 A2 A1 A0 _K 1 0 0 1 0 0
0
A _WWWWWWWW A T
P0
C
K
C
R
C
R
C
R
C
R
C
R
C
R
C
R
C
R
C
K
O
P
76543210
Write Wiper Counter Register (WCR)
S
T
A
R
T
Device Type
Identifier
0101
Device
Addresses
A3 A2 A1 A0
S
A
C
K
Instruction
Opcode
1010
DR/WCR
Addresses
0 0 0 P0
Wiper Position
S (Sent by Master on SDA) S
A _WWWWWWWW A
CCCCCCCCCC
KRRRRRRRRK
76543210
S
T
O
P
Read Data Register (DR)
S ^{Device Type}
T ^Identifier
A
Device
Addresses
Instruction
S Opcode
A
DR/WCR
Addresses
Wiper Position
S (Sent by X9268 on SDA) M S
A _WWWWWWWWA T
R0
T
1
0
C
1 A3 A2 A1 A0 _K 1 0 1 1 RB RA
0
P0
C
K
C
R
C
R
C
R
C
R
C
R
C
R
C
R
C
R
C
K
O
P
76543210
Write Data Register (DR)
S ^{Device Type}
T ^Identifier
A
Device
Addresses
Instruction
S Opcode
A
DR/WCR
Addresses
Wiper Position
S (Sent by Master on SDA) S S
A _WWWWWWWW A T
R
T
0
1
0
1
C
A3 A2 A1 A0 _K 1
1
0
0 RB RA
0
P0
C
K
C
R
C
R
C
R
C
R
C
R
C
R
C
R
C
R
C
K
O
P
76543210
Global XFR Data Register (DR) to Wiper Counter Register (WCR)
S Device Type
T Identifier
A
Device
Addresses
S
A
Instruction
Opcode
DR/WCR
Addresses
R0
T
1
0
C
1 A3 A2 A1 A0 _K 0 0 0 1 RB RA
0
0
SS
AT
CO
KP
12
FN8172.1
June 21, 2005