ICS9EPRS475CGLFT IDT, Integrated Device Technology Inc, ICS9EPRS475CGLFT Datasheet - Page 13

• Manufacturer Part Number: ICS9EPRS475CGLFT
• Description: IC EMBEDDED PC MAIN CLK 56TSSOP
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of ICS9EPRS475CGLFT

• Input: *
• Output: *
• Frequency - Max: *
• Voltage - Supply: *
• Operating Temperature: *
• Mounting Type: Surface Mount
• Package / Case: 56-TSSOP
• Frequency-max: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

IDT
Byte
Byte
Byte
Byte
Byte
9EPRS475
System Clock for Embedded AMD
®
System Clock for Embedded AMD
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
25
26
27
28
29
SMBUS Table: SRC Frequency Control Register
SMBUS Table: SRC Frequency Control Register
SMBUS Table: CPU Output Divider Control Register
SMBUS Table: CPU PLL Spread Spectrum Control Register
SMBUS Table: CPU PLL Spread Spectrum Control Register
CPUDiv3
CPUDiv2
CPUDiv1
CPUDiv0
HTTDiv3
HTTDiv2
HTTDiv1
HTTDiv0
N Div10
Name
Name
Name
Name
Name
N Div2
N Div1
M Div5
M Div4
M Div3
M Div2
M Div1
M Div0
N Div9
N Div8
N Div7
N Div6
N Div5
N Div4
N Div3
SSP15
SSP14
SSP13
SSP12
SSP11
SSP10
SSP7
SSP6
SSP5
SSP4
SSP3
SSP2
SSP1
SSP0
SSP9
SSP8
TM
based Systems
Spread Spectrum Programming b(7:0)
TM
CPU Divider Ratio Programming Bits
HTT Divider Ratio Programming Bits
based Systems
Spread Spectrum Programming
N Divider Programming Byte16
bit(7:0) and Byte15 bit(7:6)
M Divider Programming
Control Function
Control Function
Control Function
Control Function
Control Function
N Divider Prog bit 2
N Divider Prog bit 1
bit (5:0)
b(15:8)
13
Type
Type
Type
Type
Type
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
pecentage.Please contact ICS for the appropriate
pecentage.Please contact ICS for the appropriate
NOTE: Changing this frequency will also alter the
NOTE: Changing this frequency will also alter the
The decimal representation of M and N Divider in
frequency. See M/N Caculation Tables for VCO
The decimal representation of M and N Divider in
frequency. See M/N Caculation Tables for VCO
ATIG and SB_SRC frequencies by a similar
ATIG and SB_SRC frequencies by a similar
0010:/5 ; 0110:/10
0011:/9 ; 0111:/18
0000:/2 ; 0100:/4
0000:/2 ; 0100:/4
0001:/3 ; 0101:/6
Byte 20 and 21 configure the SRC VCO
Byte 20 and 21 configure the SRC VCO
N/A ; 0110:/10
N/A ; 0111:/18
N/A ; 0101:/6
These bits set the CPU/HTT spread
These bits set the CPU/HTT spread
0
0
0
0
0
frequency formulas.
frequency formulas.
amount.
amount.
values.
values.
1001:/12 ; 1101:/24
1010:/20 ; 1110:/40
1011:/36 ; 1111:/72
1001:/12 ; 1101:/24
1010:/20 ; 1110:/40
1011:/36 ; 1111:/72
1000:/8 ; 1100:/16
1000:/8 ; 1100:/16
1
1
1
1
1
Default
Default
Default
Default
Default
1615B—04/26/10
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X