ICS950810 Datasheet, PDF (5/19 Pages) Integrated Circuit Systems – Frequency Generator with 200MHz Differential CPU Clocks

ICS950810
Power Management
PD# CPU_STOP# PCI_STOP# VCO
CPU CPU# PCICLK
0
X
X
STOP Iref*2 FLOAT LOW
1
1
1
RUN
RUN
RUN
RUN
1
0
1
RUN Iref*2 FLOAT RUN
1
1
0
RUN RUN RUN LOW
1
1
1
RUN
RUN
RUN
RUN
Note: PCI_F is not affected by PCI_STOP# and CPU_STOP#
3v66
LOW
RUN
RUN
RUN
RUN
48MHz
LOW
RUN
RUN
RUN
RUN
REF
LOW
RUN
RUN
RUN
RUN
Tri-State Control of CPU Outputs
State
Byte0 bit6
PD#
Byte1bit6
Cpu_stop#
Pin
PD#
0
0
0
1
1
0
0
1
2
0
0
0
3
0
0
0
4
0
1
1
5
0
1
1
6
0
1
0
7
0
1
0
8
1
0
1
9
1
0
1
10
1
0
0
11
1
0
0
12
1
1
1
13
1
1
1
14
1
1
0
15
1
1
0
Pin
Cpu_Stop#
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
Stoppable
CPU outputs
Running
Irefx6
Irefx2
Irefx2
Running
Hi-Z
Hi-Z
Hi-Z
Running
Irefx6
Hi-Z
Hi-Z
Running
Hi-Z
Hi-Z
Hi-Z
Free-Running
CPU outputs
Running
Running
Irefx2
Irefx2
Running
Running
Irefx2
Irefx2
Running
Running
Hi-Z
Hi-Z
Running
Running
Hi-Z
Hi-Z
0472F—01/12/04
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