ICS9148-53 Datasheet, PDF (3/18 Pages) Integrated Circuit Systems – Frequency Generator & Integrated Buffers for Mother Boards

Mode Pin - Power Management Input Control
MODE, Pin 25
(Latched Input)
0
1
Pin 17
CPU_STOP#
(INPUT)
SDRAM 11
(OUTPUT)
Pin 18
PCI_STOP#
(INPUT)
SDRAM 10
(OUTPUT)
Pin 20
AGP_STOP#
(INPUT)
SDRAM 9
(OUTPUT)
ICS9148 - 53
Pin 21
PD#
(INPUT)
SDRAM 8
(OUTPUT)
Power Management Functionality
AGP_STOP# CPU_STOP# PCI_STOP#
AGP,
CPUCLK
Outputs
PCICLK
(0:5)
PCICLK_F,
REF, 48MHz
and SDRAM
1
0
1
Stopped Low Running
Running
1
1
1
Running
Running
Running
1
1
0
Running Stopped Low Running
0
1
1
Running
Running
Running
Crystal
OSC
Running
Running
Running
Running
VCO AGP(1:2)
Running Running
Running Running
Running Running
Running Stopped Low
CPU 3.3#_2.5V Buffer selector for CPUCLK drivers.
CPU3.3#_2.5
Input level
(Latched Data)
1
0
Buffer Selected for
operation at:
2.5V VDD
3.3V VDD
3