COMMERCIAL TEMPERATURE RANGE
4
IDTCV132B
PROGRAMMABLE FLEXPC™ CLOCK FOR P4 PROCESSOR
SM BUS PROTOCOL
INDEX BLOCK WRITE PROTOCOL
Bit # of bits From Description
1 1 Master Start
2-9 8 Master D2h
10 1 Slave Acknowledge
11-18 8 Master Register offset byte (starting byte)
19 1 Slave Acknowledge
20-27 8 Master Byte count N (0 is not a valid byte count)
28 1 Slave Acknowledge
29-36 8 Master First data byte
37 1 Slave Acknowledge
38-45 8 Master Second data byte
46 1 Slave Acknowledge
:
Nth data byte
Stop
PIN DESCRIPTION (CONT.)
INDEX BLOCK READ PROTOCOL
Bit # of bits From Description
1 1 Master Start
2-9 8 Master D2h
10 1 Slave Acknowledge
11-18 8 Master Register offset byte (starting byte)
19 1 Slave Acknowledge
20 1 Master Repeated start
21-28 8 Master D3h
29 1 Slave Acknowledge
30-37 8 Slave Byte count, N, SMBus table byte 8 value.
Power on default is 0FH[15].
38 1 Master Acknowledge
39-46 8 Slave Offset data byte, specified by bit 11-18
47 1 Master Acknowledge
48-55 8 Slave Offset + 1 data byte
:
Slave Offset + N-2
Master Acknowledge
Slave Offset + N-1
Not acknowledge
Stop
Pin Number Name Type Description
45 VSS_CPU GND GND
46 CPU2# OUT Host 0.7V current mode differential clock output
47 CPU2 OUT Host 0.7V current mode differential clock output
48 VDD_CPU PWR 3.3V
49 NC No Connection
50 NC No Connection
51 FSA I N CPU frequency select, latched at VTT_PWRGD# assertion
52 IREF OUT Differential reference current
53 VSS_IREF GND Host 0.7V current mode differential clock output
54 VSSA GND Analog VSS
55 VDDA PWR Analog VDD
56 FSB IN GND
COMMERCIAL TEMPERATURE RANGE
IDTCV132B
PROGRAMMABLE FLEXPC™ CLOCK FOR P4 PROCESSOR
5
BYTE 0
Bit Output(s) Affected Description/Function 0 1 Type Power On
7 Reserved R0
6 Reserved R0
5 Reserved R0
4 Reserved R0
3 Reserved R0
2 Reserved R0
1 FSB read back R
0 FSA read back R
BYTE 2
Bit Output(s) Affected Description/Function 0 1 Type Power On
7 SRC_PWRDWN drive mode Driven Tristate RW 0
6 SRC Stop mode Driven Tristate RW 0
5 CPU2_PWRDWN drive mode Driven Tristate RW 0
4 CPU1_PWRDWN drive mode Driven Tristate RW 0
3 CPU0_PWRDWN drive mode Driven Tristate RW 0
2 Reserved RW 0
1 Reserved RW 0
0 Reserved RW 0
BYTE 3
Bit Output(s) Affected Description/Function 0 1 Type Power On
7 PCI and SRC Stop Stop PCI and SRC, Stop Normal RW 1
doesn't include free run
6 PCI6 Output Enable Tristate Enable RW 1
5 PCI5 Output Enable Tristate Enable RW 1
4 PCI4 Output Enable Tristate Enable RW 1
3 PCI3 Output Enable Tristate Enable RW 1
2 PCI2 Output Enable Tristate Enable RW 1
1 PCI1 Output Enable Tristate Enable RW 1
0 PCI0 Output Enable Tristate Enable RW 1
BYTE 1
Bit Output(s) Affected Description/Function 0 1 Type Power On
7 SRC SRC free run control by Byte 3, bit 7 Free Run Stoppable RW 0
6 S RC Output Enable Tristate Enable RW 1
5 Reserved 1
4 Reserved 1
3 Reserved 1
2 CPU2 Output Enable Tristate Enable RW 1
1 CPU1 Output Enable Tristate Enable RW 1
0 CPU0 Output Enable Tristate Enable RW 1
COMMERCIAL TEMPERATURE RANGE
6
IDTCV132B
PROGRAMMABLE FLEXPC™ CLOCK FOR P4 PROCESSOR
BYTE 4
Bit Output(s) Affected Description/Function 0 1 Type Power On
7 USB x2 Strength 2x 1x RW 0
6 USB_48 Output Enable Tristate Enable RW 1
5 PCIF2 Free run control Free Run controlled by Byte 3, bit 7 RW 0
4 PCIF1 Free run control Free Run controlled by Byte 3, bit 7 RW 0
3 PCIF0 Free run control Free Run controlled by Byte 3, bit 7 RW 0
2 PCIF2 Output Enable Tristate Enable RW 1
1 PCIF1 Output Enable Tristate Enable RW 1
0 PCIF0 Output Enable Tristate Enable RW 1
BYTE 6
Bit Output(s) Affected Description/Function 0 1 Type Power On
7 Reserved RW 0
6 Reserved RW 0
5 Reserved RW 0
4 Reserved RW 0
3 Reserved RW 0
2 Spread Spectrum Spread Spectrum Enable Off On RW 0
1 REF1 Output Enable Tristate Enable RW 1
0 REF0 Output Enable Tristate Enable RW 1
BYTE 7
Bit Output(s) Affected Description/Function 0 1 Type Power On
7 Vendor ID R0
6 Vendor ID R0
5 Vendor ID R0
4 Vendor ID R0
3 Vendor ID R0
2 Vendor ID R1
1 Vendor ID R0
0 Vendor ID R1
BYTE 5
Bit Output(s) Affected Description/Function 0 1 Type Power On
7 DOT_48 Output Enable Tristate Enable RW 1
6 Reserved RW 1
5 3V66_4/VCH Mode Select 3V66 48MHz RW 0
4 3V66_4/VCH Output Enable Tristate Enable RW 1
3 3V66_3 Output Enable Tristate Enable RW 1
2 3V66_2 Output Enable Tristate Enable RW 1
1 3V66_1 Output Enable Tristate Enable RW 1
0 3V66_0 Output Enable Tristate Enable RW 1

IDTCV132BPVG8

Mfr. #:
Manufacturer:
Description:
IC FLEXPC CLK PROGR P4 56-SSOP
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
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