IDTCV149PA8 IDT, Integrated Device Technology Inc, IDTCV149PA8 Datasheet - Page 4

• Manufacturer Part Number: IDTCV149PA8
• Description: IC FLEXPC CLK PROGR K8 56-TSSOP
• Manufacturer: IDT, Integrated Device Technology Inc
• Series: FlexPC™r
• Type: PC Clockr

Specifications of IDTCV149PA8

• Input: Crystal
• Output: Clock
• Frequency - Max: 400MHz
• Voltage - Supply: 3.135 V ~ 3.465 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 56-TSSOP
• Frequency-max: 400MHz
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: CV149PA8

SM PROTOCOL
INDEX BLOCK WRITE PROTOCOL
INDEX BYTE WRITE
Setting bit[11:18] = starting address, bit[20:27] = 01h.
IDTCV149
PROGRAMMABLE FLEXPC™ CLOCK FOR AMD K8 PROCESSOR ATI RS480
11-18
20-27
29-36
38-45
Bit
2-9
10
19
28
37
46
1
# of bits
1
8
1
8
1
8
1
8
1
8
1
Master
Master
Master
Master
Master
Master
Master
Master
From
Slave
Slave
Slave
Slave
Slave
Slave
Start
D2h
Ack (Acknowledge)
Register offset byte (starting byte)
Ack (Acknowledge)
Byte count, N (0 is not valid)
Ack (Acknowledge)
first data byte (Offset data byte)
Ack (Acknowledge)
2nd data byte
Ack (Acknowledge)
:
Nth data byte
Acknowledge
Stop
Description
4
INDEX BYTE READ
Setting bit[11:18] = starting address. After reading back the first data byte,
master issues Stop bit.
INDEX BLOCK READ PROTOCOL
Master can stop reading any time by issuing the stop bit without waiting
until Nth byte (byte count bit30-37).
11-18
21-28
30-37
39-46
48-55
Bit
2-9
10
19
20
29
38
47
1
# of bits
1
8
1
8
1
1
8
1
8
1
8
1
8
Master
Master
Master
Master
Master
Master
Master
Master
Master
From
Slave
Slave
Slave
Slave
Slave
Slave
Slave
COMMERCIAL TEMPERATURE RANGE
Start
D2h
Ack (Acknowledge)
Register offset byte (starting byte)
Ack (Acknowledge)
Repeated Start
D3h
Ack (Acknowledge)
Byte count, N (block read back of N
Ack (Acknowledge)
first data byte (Offset data byte)
Ack (Acknowledge)
2nd data byte
Ack (Acknowledge)
Ack (Acknowledge)
Nth data byte
Not acknowledge
Stop
bytes), power on is 8
:
Description