X9251-2.7 INTERSIL [Intersil Corporation], X9251-2.7 Datasheet - Page 10

• Manufacturer Part Number: X9251-2.7
• Description: Single Supply/Low Power/256-Tap/SPI Bus
• Manufacturer: INTERSIL [Intersil Corporation]

Figure 5. Three-Byte Instruction Sequence (Read Status Register
Figure 6. Increment/Decrement Instruction Sequence
Figure 7. Increment/Decrement Timing Spec
SCK
SCK
CS
CS
SI
SI
ID3 ID2 ID1 ID0
ID3 ID2 ID1 ID0
0
0
Device ID
Device ID
1
1
SCK
R W
SI
0
0
1
1
INC/DEC CMD ISSUED
0
0
10
0
0
0
0
0
0
Internal
Address
Internal
Address
A1 A0
A1 A0
I3
1
I2
VOLTAGE OUT
Instruction
Opcode
I2
Instruction
Opcode
0
I3
I1 I0
1
I1 I0
X9251
1
Register
Address
RB RA
RB RA
Register
Address
P1
P1
Pot/WCR
Address
Pot/WCR
Address
P0
P0
t WRID
0
N
C
1
I
0
N
C
2
I
0
0
N
C
n
I
0
D
E
C
1
0
0
Status
D
E
C
n
WIP
Bit
September 14, 2005
FN8166.2