PCK2023DGG Philips Semiconductors, PCK2023DGG Datasheet - Page 18

• Manufacturer Part Number: PCK2023DGG
• Description: CK408 66/100/133/200 MHz spread spectrum differential system clock generator
• Manufacturer: Philips Semiconductors

Philips Semiconductors
BYTE 0
BYTE 1
2001 Sep 07
CK408 (66/100/133/200 MHz) spread
spectrum differential system clock generator
BIT
BIT
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
PCI_stop. This bit is ANDed
current value of the external
DESCRIPTION/FUNCTION
DESCRIPTION/FUNCTION
I
VCH select 66 MHz/48MHz
S0 reflects the value of the
S1 reflects the value of the
S2 reflects the value of the
with the PCI_STOP pin for
2
allow control of CPU0 with
allow control of CPU1 with
allow control of CPU2 with
CPU Mult0 value sampled
spread spectrum enabled
C readback and control of
assertion of CPU_Stop
assertion of CPU_Stop
CPU_stop reflects the
assertion of CPU stop
Sel_0 pin sampled on
Sel_1 pin sampled on
Sel_2 pin sampled on
CPU0 output enable
CPU1 output enable
CPU2 output enable
CPU_Stop pin
0 = disabled
0 = disabled
0 = disabled
0 = disabled
0 = disabled
0 = disabled
PCI outputs
1 = enabled
1 = enabled
1 = enabled
1 = enabled
1 = enabled
1 = enabled
power-up
power-up
power-up
at startup
not used
not used
enabled
TYPE
TYPE
RW
RW
RW
RW
RW
RW
RW
RW
RW
—
—
R
R
R
R
R
0 = not free running,
0 = not free running,
0 = not free running,
0 = 66MHz enabled
externally selected
externally selected
externally selected
externally selected
externally selected
externally selected
0 = spread off
is affected by
is affected by
is affected by
CONDITION
CONDITION
POWER UP
POWER UP
1 = enabled
1 = enabled
1 = enabled
CPU_Stop
CPU_Stop
CPU_Stop
0
0
18
All CPU clock pairs
outputs except
PCI[2:0] pins
3V66_1/VCH
All PCI clock
OUTPUT(S)
OUTPUT(S)
AFFECTED
AFFECTED
CPU[2:0],
3V66[1:0]
CPU0
CPU0
CPU1
CPU1
CPU2
CPU2
CPU0
CPU0
CPU1
CPU1
CPU2
CPU2
N/A
N/A
N/A
N/A
—
—
44, 45, 48, 49, 51,
13, 16, 17, 18, 33,
10, 11, 12, 13, 16,
5, 6, 7, 10, 11, 12,
PIN AFFECTED
PIN AFFECTED
17, 18
51, 52
48, 49
44, 45
51, 52
48, 49
44, 45
N/A
N/A
N/A
N/A
52
35
35
—
—
PCK2023
SOURCE PIN
SOURCE PIN
N/A
N/A
N/A
N/A
54
55
40
34
53
55
40
34
53
43
Product data
—
—