pi6c410b-01 Pericom Semiconductor Corporation, pi6c410b-01 Datasheet - Page 4

• Manufacturer Part Number: pi6c410b-01
• Description: 400mhz Clock Generator For Server/workstation
• Manufacturer: Pericom Semiconductor Corporation

Serial Data Interface (SMBus)
The PI6C410B-01 is a slave only SMBus device that supports both indexed block read and indexed block write protocol using a
single 7-bit address and read/write bit as shown below.
Address Assignment
Data Protocol
Note:
3.
Data Byte 0: Control Register
Start
1 bit
Bit
bit
0
1
2
3
4
5
6
7
Register offset for indicating the starting register for indexed block write and indexed block read. Byte Count in write mode cannot be 0.
A6
1
06-0335
CPU_4 Output Enable
1 = Enabled, 0 = Disabled (Hi-Z)
SRC_1 Output Enable
1 = Enabled, 0 = Disabled (Hi-Z)
SRC_2 Output Enable
1 = Enabled, 0 = Disabled (Hi-Z)
SRC_3 Output Enable
1 = Enabled, 0 = Disabled (Hi-Z)
SRC_4 Output Enable
1 = Enabled, 0 = Disabled (Hi-Z)
Reserved
Reserved
Reserved
7 bits
Slave
Addr
(3)
R/W
Descriptions
1
A5
1
Ack
1
Register
8 bits
offset
A4
0
Ack
1
Type
RW
RW
RW
RW
RW
RW
RW
RW
Count = N
8 bits
A3
Byte
1
1 = Enabled
1 = Enabled
1 = Enabled
1 = Enabled
1 = Enabled
Power Up
Condition
Clock Generator for Intel PCI-Express Server Chipset
4
Ack
1
A2
Data Byte
0
8 bits
0
CPU_4, CPU_4#
Output
SRC_1
SRC_2
SRC_3
SRC_4
Ack
1
A1
0
…
Data Byte
8 bits
N - 1
32, 31
19, 18
21, 22
24, 23
26, 27
A0
Pin
1
PS8881C
PI6C410B-01
Ack
1
Source Pin
R/W
Stop bit
0/1
NA
NA
NA
NA
NA
1 bit
12/19/06