OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

ICS91720BGLF

P1-P3P4-P6P7-P9P10-P11
4
ICS91720
0698D—10/05/04
General I
2
C serial interface information
How to Write:
• Controller (host) sends a start bit.
• Controller (host) sends the write address D4
(H)
• ICS clock will
acknowledge
• Controller (host) sends the begining byte location = N
• ICS clock will
acknowledge
• Controller (host) sends the data byte count = X
• ICS clock will
acknowledge
• Controller (host) starts sending
Byte N through
Byte N + X -1
(see Note 2)
• ICS clock will
acknowledge
each byte
one at a time
• Controller (host) sends a Stop bit
How to Read:
• Controller (host) will send start bit.
• Controller (host) sends the write address D4
(H)
• ICS clock will
acknowledge
• Controller (host) sends the begining byte
location = N
• ICS clock will
acknowledge
• Controller (host) will send a separate start bit.
• Controller (host) sends the read address D5
(H)
• ICS clock will
acknowledge
• ICS clock will send the data byte count = X
• ICS clock sends
Byte N + X -1
• ICS clock sends
Byte 0 through byte X (if X
(H)
was written to byte 8)
.
• Controller (host) will need to acknowledge each byte
• Controllor (host) will send a not acknowledge bit
• Controller (host) will send a stop bit
ICS (Slave/Receiver)
T
WR
ACK
ACK
ACK
ACK
ACK
P
Byte N + X - 1
Data Byte Count = X
Beginning Byte N
stoP bit
X Byte
Index Block Write Operation
Slave Address D4
(H)
Beginning Byte = N
WRite
starT bit
Controller (Host)
TstarT bit
WR WRite
RT Repeat starT
RD ReaD
Beginning Byte N
Byte N + X - 1
N Not acknowledge
PstoP bit
ICS (Slave/Receiver)
Controller (Host)
X Byte
ACK
ACK
Data Byte Count = X
ACK
Slave Address D5
(H)
Index Block Read Operation
Slave Address D4
(H)
Beginning Byte = N
ACK
ACK
5
ICS91720
0698D—10/05/04
B
y
te
0 Pin # Name Control Function 0 1 PWD
Bit 7
- FS0 Spread/FS0 RW 1
Bit 6
- FS1 Spread/FS1 RW 0
Bit 5
FS2 Spread/FS2 RW 0
Bit 4
FS3 Spread/FS3 RW 0
Bit 3
FS4 FS4 RW 0
Bit 2
PD# Tri_Sate PD# Tri_Sate RW Hi-Z LOW 1
Bit 1
Spread Enable Spread Enable RW OFF ON 1
Bit 0
HW/SW Control
Spread Spectrum Control
FS 3:4 Hard/Software
Select RW HW SW 0
B
y
te
1 Pin # Name Control Function 0 1 PWD
Bit 7
REF_OUT REF_OUT_Enable RW Disable Enable 1
Bit 6
- REF_OUT Slew Rate REF-OUT RW Nominal Fast 1
Bit 5
FS-IN_1 FS-IN_1 Readback R - - X
Bit 4
FS-IN_0 FS-IN_0 Readback R - - X
Bit 3
CLK_OUT Slew Rate CLK-OUT RW Nominal Fast 1
Bit 2
CLK_OUT CLK_OUT_Enable RW Disable Enable 1
Bit 1
(Reserved) (Reserved) R - - 1
Bit 0
(Reserved) (Reserved)
R- -1
B
y
te
2 Pin # Name Control Function 0 1 PWD
Bit 7
x - (Reserved) - - - 1
Bit 6
x (Reserved) (Reserved) RW - - 1
Bit 5
x (Reserved) (Reserved) RW - - 1
Bit 4
x (Reserved) (Reserved) RW - - 1
Bit 3
x (Reserved) (Reserved) RW - - 1
Bit 2
x (Reserved) (Reserved) RW - - 1
Bit 1
x (Reserved) (Reserved) RW - - 1
Bit 0
x
(Reserved) (Reserved)
RW - - 1
Affected Pin
Affected Pin
Affected Pin
Spread percentage
See Table 1
These are I2C bits
only
T
yp
e
Bit Control
T
yp
e
Bit Control
T
yp
e
Bit Control
6
ICS91720
0698D—10/05/04
Byte
3
Pin # Name Control Function 0 1 PWD
Bit 7 X
(
Reserved
)
(
Reserved
)
RW - - 1
Bit 6 X
(
Reserved
)
(
Reserved
)
RW - - 1
Bit 5 X
(
Reserved
)
(
Reserved
)
RW - - 1
Bit 4 X
(
Reserved
)
(
Reserved
)
RW - - 1
Bit 3 x
(
Reserved
)
(
Reserved
)
RW - - 1
Bit 2 X
(
Reserved
)
(
Reserved
)
RW - - 1
Bit 1 X
(
Reserved
)
(
Reserved
)
RW - - 1
Bit 0 X
(Reserved) (Reserved)
RW - - 1
Byte
4
Pin # Name Control Function 0 1 PWD
Bit 7
X
(
Reserved
)
(
Reserved
)
RW - - 1
Bit 6
X
(
Reserved
)
(
Reserved
)
RW - - 1
Bit 5
X
(
Reserved
)
(
Reserved
)
RW - - 1
Bit 4
X
(
Reserved
)
(
Reserved
)
RW - - 1
Bit 3
X
(
Reserved
)
(
Reserved
)
RW - - 1
Bit 2
X
(
Reserved
)
(
Reserved
)
RW - - 1
Bit 1
X
(
Reserved
)
(
Reserved
)
RW - - 1
Bit 0
X (Reserved) (Reserved) RW - - 1
Byte
5
Pin # Name Control Function 0 1 PWD
Bit 7
X
(
Reserved
)
(
Reserved
)
---1
Bit 6
X
(
Reserved
)
(
Reserved
)
---1
Bit 5
X
(
Reserved
)
(
Reserved
)
---1
Bit 4
X
(
Reserved
)
(
Reserved
)
---1
Bit 3
X
(
Reserved
)
(
Reserved
)
RW - - 1
Bit 2
X
(
Reserved
)
(
Reserved
)
RW - - 1
Bit 1
X
(
Reserved
)
(
Reserved
)
RW - - 1
Bit 0
X (Reserved) (Reserved) RW - - 1
Affected Pin Bit Control
Type
Affected Pin
Type
Bit ControlAffected Pin
Type
Bit Control
P1-P3P4-P6P7-P9P10-P11

ICS91720BGLF

Mfr. #:
Buy ICS91720BGLF
Manufacturer:
Description:
IC CLK GENERATOR LOW EMI 8-TSSOP
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet