cy28349oxct SpectraLinear Inc, cy28349oxct Datasheet - Page 7

• Manufacturer Part Number: cy28349oxct
• Description: Ftg For Intel Pentium 4 Cpu And Chipsets
• Manufacturer: SpectraLinear Inc

Rev 1.0, November 24, 2006
Data Byte 1 (continued)
Data Byte 2
Data Byte 3
Data Byte 4
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
Bit
Bit
Bit
44, 45
Pin#
Pin#
Pin#
Pin#
28
30
31
17
16
15
14
12
11
10
48
--
--
--
--
--
--
--
--
--
--
--
8
7
6
1
CPU_ITP, CPU_ITP#
3V66_2
3V66_1
3V66_0
Reserved
PCI6
PCI5
PCI4
PCI3
PCI2
PCI1
PCI0
PCI_F2
PCI_F1
PCI_F0
Reserved
Reserved
REF1
REF0
MULTSEL_Override
SW_MULTSEL1
SW_MULTSEL0
Reserved
Reserved
Reserved
Reserved
Reserved
Name
Name
Name
Name
(Active/Inactive)
(Active/Inactive)
(Active/Inactive)
Reserved
(Active/Inactive)
(Active/Inactive)
(Active/Inactive)
(Active/Inactive)
(Active/Inactive)
(Active/Inactive)
(Active/Inactive)
(Active/Inactive)
(Active/Inactive)
(Active/Inactive)
Reserved
(Active/Inactive)
Reserved
(Active/Inactive)
(Active/Inactive)
This bit control the selection of IREF multiple.
0 = HW control; IREF multiplier is determined by
MULTSEL[0:1] input pins
1 = SW control; IREF multiplier is determined by Byte[4],
Bit[5:6].
IREF multiplier
00 = Ioh is 4 x IREF
01 = Ioh is 5 x IREF
10 = Ioh is 6 x IREF
11 = Ioh is 7 x IREF
Reserved
Reserved
Reserved
Reserved
Reserved
Pin Description
Pin Description
Pin Description
Description
CY28349
Page 7 of 20
Power On
Power On
Power On
Power On
Reserved
Reserved
Reserved
Reserved
Reserved
Default
Default
Default
Default
1
1
1
1
1
1
1
1
0
1
1
1
1
1
1
1
0
0
1
0
0
0