IDTCV152 Ver la hoja de datos (PDF) - Integrated Device Technology
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IDTCV152 Datasheet PDF : 15 Pages
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IDTCV152
PROGRAMMABLE FLEXPC CLOCK FOR P4 PROCESSOR
BYTE 4
Bit
0
1
2
3
4
5
6
7
Output(s) Affected
CPUCLK0 Stop EN
CPUCLK1 Stop EN
CPUCLK2 Stop EN
CPUCLK3 Stop EN
CPUT0, CPUC0
CPUT1, CPUC1
CPUT2, CPUC2
CPUT3, CPUC3
Description / Function
Free-running control,
Default: not affected by CPU_STOP
CPU0 Pwrdwn drive mode
CPU1 Pwrdwn drive mode
CPU2 Pwrdwn drive mode
CPU3 Pwrdwn drive mode
0
Free-running
Driven in power down
COMMERCIAL TEMPERATURE RANGE
1
Type
Power On
RW
1
Stoppable
RW
1
RW
1
RW
1
RW
0
Tristate in
RW
0
power down
RW
0
RW
0
BYTE 5
Bit
0
1
2
3
4
5
6
7
Output(s) Affected
CPUCLK0
CPUCLK1
CPUCLK2
CPUCLK3
CPUCLK4
SRC
SRC
CPUCLK4
Description / Function
0
1
Type
RW
RW
Stop Drive - Drive mode in Stop
Driven
Tri-state
RW
RW
RW
SRC Pwrdwn drive mode
Driven in power down Tristate in power down RW
PCI_STOP drive mode
Driven in PCI_Stop Tristate in power down RW
CPU1 Pwrdwn drive mode
Driven in power down Tristate in power down RW
Power On
0
0
0
0
0
0
0
0
BYTE 6
Bit
Output(s) Affected
Description / Function
0
1
Type
0
FSA latched value on power up
R
1
FSB latched value on power up
R
2
FSC latched value on power up
R
3
Software PCI_STOP
function
Stop all PCI/F & SRC
except PCIF[2:0] and SRC
No stop
RW
clocks set to free running
4
REFstr1
REF drive strength , work with
RW
byte12 bit2, see strength table
5
CPU
CPU_Stop control
Stop non-free running
Run
RW
CPU clocks
6
Test Mode entry control
Normal operation
Test mode, controlled
RW
by byte 6 bit 7
7
Only valid when Byte6 bit6
Hi-Z
REF/N mode
RW
is HIGH
Power On
FSA
FSB
FSC
1
1
1
0
0
6
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