7
953008
Datasheet
1076—08/06/09
I
2
C Table: Frequency Select Register
Bit 7
FS Source
Frequency H/W IIC
Select
RW 0
Bit 6
SS_EN1 PLL1 Spread Enable RW 0
Bit 5
SS_EN2 PLL2 Spread Enable RW 1
Bit 4
FS4 Freq Select Bit 4 RW Latch
Bit 3
FS3 Freq Select Bit 3 RW Latch
Bit 2
FSL2 Freq Select Bit 2 RW Latch
Bit 1
FSL1 Freq Select Bit 1 RW Latch
Bit 0
FSL0 Freq Select Bit 0 RW Latch
I
2
C Table: General Device Behaviour Register
Bit 7
IREF Bit0
IREF Mulitiplier
Programming Bits
RW 0
Bit 6
SEL24_48MHz Output Select RW Latch
Bit 5
Mode 0 Output Select RW Latch
Bit 4
PCIEX PLL Cntrl PCIEX PLL Source RW 0
Bit 3
3V66/PCI PLL Cntrl
3V66/PCI PLL
Source
RW 0
Bit 2
ASYNC1
RW 0
Bit 1
ASYNC0
RW 0
Bit 0
Reserved Reserved RW 0
I
2
C Table: Output Control Register
Bit 7
REF0 Output Control RW 1
Bit 6
REF1 Output Control RW 1
Bit 5
PCICLK0 Output Control RW 1
Bit 4
PCICLK1 Output Control RW 1
Bit 3
PCICLK2 Output Control RW 1
Bit 2
PCICLK3 Output Control RW 1
Bit 1
PCICLK4 Output Control RW 1
Bit 0
PCICLK5 Output Control RW 1
I
2
C Table: Output Control Register
Bit 7
48MHz Output Control RW 1
Bit 6
24_48MHz Output Control RW 1
Bit 5
3V66_2 Output Control RW 1
Bit 4
3V66_1 Output Control RW 1
Bit 3
3V66_0 Output Control RW 1
Bit 2
PCICLK6 Output Control RW 1
Bit 1
PCICLK7 Output Control RW 1
Bit 0
PCICLK8 Output Control RW 1
Control Function Type
-
-
-
3V66/PCI Async
Freq Prog bits
-
PWD
-
Name Control Function Type 0
7 x Iref6 x Iref
48MHz
Disable
Disable
0
Name Type
PWD
1
01
Latch Inputs
OFF
Enable
-
-
PWD
PWD
-
Byte 1 Pin #
-
-
-
-
Byte 3
-
-
-
-
-
-
-
Name
-
-
-
-
-
Pin #
-
Name
-
-
-
Byte 2 Pin #
-
-
-
TypeByte 0 Pin #
-
Control Function
Control Function
OFF
IIC
ON
ON
See Table1:PLL1 Frequency Selection
Table
Sync
--
00 = PLL2 10 = 75.4/37.7
01 = 66.0/33.0
24MHz
11 = 88.0/44.0
Async
01
Enable
Disable
Disable
Disable Enable
Enable
Enable
Enable
EnableDisable
Disable
Enable
Disable Enable
Disable Enable
Disable
Disable
1
Disable
Enable
Disable
Disable Enable
PCIEXCLKT/C0 CPUCLKT/C2
Enable
Disable Enable
Disable Enable
Sync Async (PLL2)
Enable
8
953008
Datasheet
1076—08/06/09
I
2
C Table: Out
p
ut Control Re
g
ister
Bit 7
PCIEXCLKT/C3 Output Control RW 1
Bit 6
PCIEXCLKT/C2 Output Control RW 1
Bit 5
PCIEXCLKT/C1 Output Control RW 1
Bit 4
CPUCLK2/PCIEX0 Output Control RW 1
Bit 3
CPUCLKT/C1 Output Control RW 1
Bit 2
CPUCLKT/C0 Output Control RW 1
Bit 1
PCICLK9 Output Control RW 1
Bit 0
Reserved Reserved RW 1
I
2
C Table: Programmable Skew Control Register
Bit 7
PCISkw3 RW 0000:0 0100:150 1000:300 1100:450 1
Bit 6
PCISkw2 RW 0001:N/A 0101:N/A 1001:N/A 1101:600 1
Bit 5
PCISkw1 RW 0010:N/A 0110:N/A 1010:N/A 1110:750 0
Bit 4
PCISkw0 RW 0011:N/A 0111:N/A 1011:N/A 1111:900 0
Bit 3
3V66Skw3 RW 0000:0 0100:150 1000:300 1100:450 1
Bit 2
3V66Skw2 RW 0001:N/A 0101:N/A 1001:N/A 1101:600 0
Bit 1
3V66Skw1 RW 0010:N/A 0110:N/A 1010:N/A 1110:750 0
Bit 0
3V66Skw0 RW 0011:N/A 0111:N/A 1011:N/A 1111:900 0
I
2
C Table: Reserved Register
Bit 7
Reserved
RW 1
Bit 6
Reserved
RW 1
Bit 5
Reserved
RW 1
Bit 4
Reserved
RW 1
Bit 3
Reserved
RW 0
Bit 2
Reserved
RW 1
Bit 1
Reserved
RW 1
Bit 0
Reserved
RW 1
I
2
C Table: Vendor ID Register
Bit 7
REVID3 Revision ID R 0
Bit 6
REVID2 Revision ID R 0
Bit 5
REVID1 Revision ID R 0
Bit 4
REVID0 Revision ID R 0
Bit 3
VID3 Vendor ID R 0
Bit 2
VID2 Vendor ID R 0
Bit 1
VID1 Vendor ID R 0
Bit 0
VID0 Vendor ID R 1
-
-
-
-
-
--
-
-
001 = ICS
--
-
Type
-
Control Function
Disable
0
Disable
Disable
-
-
-
-
-
-
Byte 6 Pin #
Control Function
Reserved
-
-
-
-
Reserved
Reserved
Reserved
Disable
Disable
0
-
Pin #
Name
-
-
Byte 4
-
-
-
Pin #
Name
Name
Name
Type
Type 0 1
1
01
Type
-
-
PWD
PWD
PWD
PWD
-
Pin #
-
-
Byte 7
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Byte 5
Control Function
CPU-PCI 7 Steps
Skew Control (ps)
Control Function
Enable
1
Disable Enable
Disable Enable
Enable
Enable
Enable
--
--
--
-
Enable
--
--
--
--
--
CPU-3V66 7 Steps
Skew Control (ps)
9
953008
Datasheet
1076—08/06/09
I
2
C Table: Byte Count Register
Bit 7
BC7 RW 0
Bit 6
BC6 RW 0
Bit 5
BC5 RW 0
Bit 4
BC4 RW 0
Bit 3
BC3 RW 1
Bit 2
BC2 RW 1
Bit 1
BC1 RW 1
Bit 0
BC0 RW 1
I
2
C Table: WD Time Control Register
Bit 7
WDEN
Watchdog Alarm
Enable (Hard alarm
only)
RW 0
Bit 6
WDSEN
Watchdog Soft
Alarm Enable (Hard
and Soft alarm)
RW 0
Bit 5
WD Hard Status
WD Hard Alar m
Status
Rx
Bit 4
WD Soft Status
WD Soft Alarm
Status
Rx
Bit 3
WDTCtrl
Watch Dog Time
base Control
RW 0
Bit 2
WD2 WD Timer Bit 2 RW 1
Bit 1
WD1 WD Timer Bit 1 RW 1
Bit 0
WD0 WD Timer Bit 0 RW 1
I
2
C Table: M/N Programming & WD Safe Frequency Control Register
Bit 7
M/NEN
PLL1 M/N
Programming
Enable
RW 0
Bit 6
Reserved Reserved RW 0
Bit 5
WD Safe Freq
Source
WD Safe Freq
Source
RW 0
Bit 4
WD SF4 RW 0
Bit 3
WD SF3 RW 0
Bit 2
WD SF2 RW 0
Bit 1
WD SF1 RW 0
Bit 0
WD SF0 RW 0
PWDByte 9 Pin # Name
-
-
-
Watch Dog Safe
Freq Programming
bits
-
Type
Name Type
PWD
01PWDByte 8 Pin #
-
Byte Count
Programming b(7:0)
-
-
-
-
-
-
-
Type
-
-
-
-
Byte 10 Pin # Control FunctionName
-
-
-
-
-
-
-
-
Control Function
Control Function
01
Disable Enable
Disable Enable
01
Normal Alarm
These bits represent X*290ms (or 1.16S)
the watchdog timer waits before it goes to
alarm mode. Default is 7 X 290ms = 2s.
290ms Base 1160ms Base
Writing to this regis ter will configure how
many bytes will be read back, default is
0F = 15 bytes.
Writing to these bit will configure the safe
frequency as Byte0 bit (4:0).
Disable
-
B10b(4:0) Latch Inputs
-
Enable
Normal Alarm

953008BFLF

Mfr. #:
Manufacturer:
IDT
Description:
Clock Generators & Support Products PC MAIN CLOCK
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet