參數(shù)資料
型號: ICS954321YGLF-T
廠商: INTEGRATED DEVICE TECHNOLOGY INC
元件分類: 時鐘產(chǎn)生/分配
英文描述: 400 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO64
封裝: 6.10 MM, 0.50 MM PITCH, ROHS COMPLIANT, MO-153, TSSOP-64
文件頁數(shù): 19/19頁
文件大?。?/td> 224K
代理商: ICS954321YGLF-T
9
Integrated
Circuit
Systems, Inc.
ICS954321
1078B—09/20/05
SMBus Table: Watchdog Timer Register
Control
Function
Bit 7
WDH_EN
Watchdog Hard Alarm
Enable
RW
0
Bit 6
WDS_EN
Watchdog Soft Alarm
Enable
RW
0
Bit 5
WD Hard Status
WD Hard Alarm Status
R
X
Bit 4
WD Soft Status
WD Soft Alarm Status
R
X
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
SMBus Table: VCO Control Select Bit & WD Timer Control Register
Control
Function
Bit 7
M/N_EN
PLLM/N Programming
Enable
RW
0
Bit 6
LCDCLK/SRCCLK0 SEL
SELSRC/LCDCLK#
R
latch
Bit 5
Reserved
RW
1
Bit 4
-
Bit 3
WD Safe Freq Source
RW
0
Bit 2
WD SFC
RW
0
Bit 1
WD SFB
RW
0
Bit 0
WD SFA
RW
0
SMBus Table: VCO Frequency Control Register
Control
Function
Bit 7
N Div8
N Divider Prog bit 8
RW
X
Bit 6
N Div 9
N Divider Prog bit 9
RW
X
Bit 5
M Div5
RW
X
Bit 4
M Div4
RW
X
Bit 3
M Div3
RW
X
Bit 2
M Div2
RW
X
Bit 1
M Div1
RW
X
Bit 0
M Div0
RW
X
SMBus Table: VCO Frequency Control Register
Control
Function
Bit 7
N Div7
RW
X
Bit 6
N Div6
RW
X
Bit 5
N Div5
RW
X
Bit 4
N Div4
RW
X
Bit 3
N Div3
RW
X
Bit 2
N Div2
RW
X
Bit 1
N Div1
RW
X
Bit 0
N Div0
RW
X
SMBus Table: Spread Spectrum Control Register
Control
Function
Bit 7
SSP7
RW
X
Bit 6
SSP6
RW
X
Bit 5
SSP5
RW
X
Bit 4
SSP4
RW
X
Bit 3
SSP3
RW
X
Bit 2
SSP2
RW
X
Bit 1
SSP1
RW
X
Bit 0
SSP0
RW
X
Alarm
Enable
Alarm
Disable
1160ms Base
Disable
These Spread Spectrum bits in Byte 13
and 14 will program the spread
pecentage. It is recommended to use
ICS Spread % table for spread
programming.
The decimal representation of M and N
Divier in Byte 11 and 12 will configure the
VCO frequency. Default at power up =
latch-in or Byte 0 Rom table. VCO
Frequency = 14.318 x [NDiv(9:0)+8] /
[MDiv(5:0)+2]
Latch
B10b(2:0)
Pin #
Byte 11
Pin #
Byte 13
-
Byte 9
Pin #
-
Byte 10
Pin #
-
PWD
1
01
PWD
Disable
Enable
LCDCLK
SRCCLK0
PWD
The decimal representation of M and N
Divier in Byte 11 and 12 will configure the
VCO frequency. Default at power up =
latch-in or Byte 0 Rom table. VCO
Frequency = 14.318 x [NDiv(9:0)+8] /
[MDiv(5:0)+2]
1
0
PWD
1
-
Name
Pin #
-
Name
Type
0
PWD
Byte 12
Name
Watch Dog Safe Freq
Programming bits
Type
Spread Spectrum
Programming b(7:0)
Enable
Normal
M Divider Programming
bits
N Divider Programming
b(8:0)
1
Type
-
Normal
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
Name
Reserved
Writing to these bit will configure the safe
frequency as Byte6 bit (2:0).
-
Name
Type
0
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