ICS9EPRS475CGLFT IDT, Integrated Device Technology Inc, ICS9EPRS475CGLFT Datasheet - Page 8

• 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
0
1
2
3
4
SMBus Table: Latched Input Readback Output Enable Control Register
SMBus Table:Output Enable Control Register
SMBus Table: Output Enable and 48MHz Strength Control Register
SMBus Table: CPU/HTT Frequency Control Register
SMBus Table: SRC Frequency Control Register
SEL_HTT66 readback
SRC_PLL_SS_Enable
48MHz_1_Strength
48MHz_0_Strength
REF0_Strength
REF1_Strength
REF2_Strength
SB_SRC0_OE
SB_SRC1_OE
48MHz_1_OE
48MHz_0_OE
HTT100_OE
SS_Enable
ATIG2_OE
ATIG1_OE
ATIG0_OE
CPU1_OE
CPU0_OE
SRC3_OE
SRC2_OE
SRC1_OE
SRC0_OE
REF0_OE
REF1_OE
REF2_OE
CPU_FS4
CPU_FS3
CPU_FS2
CPU_FS1
CPU_FS0
SRC_FS4
SRC_FS3
SRC_FS2
SRC_FS1
SRC_FS0
Name
Name
Name
Name
Name
TM
based Systems
TM
based Systems
Spread Spectrum Enable (SRC,
48MHz_1 Drive Strength Sel.
48MHz_0 Drive Strength Sel.
SRC Frequency Select MSB
CPU Frequency Select MSB
CPU Frequency Select LSB
SRC Frequency Select LSB
Spread Spectrum Enable
REF0_Drive Strength Sel
REF1_Drive Strength Sel
REF2_Drive Strength Sel
CPU Frequency Select
SRC Frequency Select
CPU Frequency Select
CPU Frequency Select
SRC Frequency Select
SRC Frequency Select
Hypertransport Select
Control Function
Control Function
Control Function
Control Function
SB_SRC, ATIG)
Description
Output Enable
Output Enable
Output Enable
Output Enable
Output Enable
Output Enable
Output Enable
Output Enable
Output Enable
Output Enable
Output Enable
Output Enable
Output Enable
Output Enable
Output Enable
Output enable
Output enable
(CPU, HTT)
Reserved
Reserved
Reserved
Reserved
Reserved
8
Type
Type
Type
Type
X.3
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
R
100MHz Differential HTT
Note that Selected HTT frequency tracks the
synchronous to these outputs. Changing this
frequency will alter the SB_SRC and ATIG
Default value corresponds to 200MHz.
Note: SB_SRC and ATIG Clocks are
frequency by the same percentage.
Spread Off
Spread Off
See CPU Frequency Select Table
See SRC Frequency Select Table
Low/Low
Low/Low
Low/Low
Low/Low
Low/Low
Low/Low
Low/Low
Low/Low
Low/Low
Low/Low
Low/Low
Low/Low
1 Load
1 Load
1 Load
1 Load
1 Load
clock
Low
Low
Low
Low
Low
0
0
0
0
0
CPU frequency.
66 MHz 3.3V Single-
ended HTT clock
Spread On
Spread On
Enabled
Enabled
Enabled
Enabled
Enabled
Enabled
Enabled
Enabled
Enabled
Enabled
Enabled
Enabled
Enabled
Enabled
Enabled
Enable
Enable
2 Load
2 Load
2 Load
2 Load
2 Load
1
1
1
1
1
Default
Default
Default
Default
Default
Latch
1615B—04/26/10
0
1
1
1
1
1
0
1
1
1
1
1
1
1
1
1
1
0
1
1
1
1
1
0
0
0
0
1
1
1
1
1
1
1
0
1
1
1
1