MAX6621AUB+ MAXIM [Maxim Integrated Products], MAX6621AUB+ Datasheet - Page 6

• Manufacturer Part Number: MAX6621AUB+
• Description: PECI-to-I2C Translator
• Manufacturer: MAXIM [Maxim Integrated Products]

Table 1. Configuration Registers
PECI-to-I
The MAX6621 obtains temperature data from an inter-
nal temperature sensor in PECI-compliant hosts. Up to
four PECI hosts can be connected to the PECI I/O inter-
face. The MAX6621 handles all the PECI transmissions
The MAX6621 has four configuration registers (Table 1).
CONFIG0 is the main configuration register that enables
the PECI sockets, I
and polling delay. CONFIG1 sets the number of retries,
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ADDRESS
COMMAND BYTE
0Ah
0Bh
0Ch
0Dh
00h
01h
02h
03h
04h
05h
06h
07h
08h
09h
0Eh
0Fh
10h
11h
12h
13h
14h
15h
0Ch
0Dh
0Eh
0Fh
2
Read socket 0, domain 0 temperature register
Read socket 0, domain 1 temperature register
Read socket 1, domain 0 temperature register
Read socket 1, domain 1 temperature register
Read socket 2, domain 0 temperature register
Read socket 2, domain 1 temperature register
Read socket 3, domain 0 temperature register
Read socket 3, domain 1 temperature register
Read maximum temperature for all enabled sockets/domains register
Read firmware version register
Read maximum temperature address
Read socket and domain that caused alert
Read/write CONFIG0 register
Read/write CONFIG1 register
Read/write CONFIG2 register
Read/write CONFIG3 register
Read/write alert temperature for socket 0
Read/write alert temperature for socket 1
Read/write alert temperature for socket 2
Read/write alert temperature for socket 3
Request polling
Clear alert
C bus timeout, PEC, alert activation,
2
Detailed Description
C Translator
REGISTER DESCRIPTION
CONFIG0 register
CONFIG1 register
CONFIG2 register
CONFIG3 register
Configuration
DESCRIPTION
and uses a 2-wire, I
communicate with the PECI host.
The following is an overview of the I
ters/commands supported by the MAX6621.
CONFIG2 sets the temperature offset, and CONFIG3
controls the temperature averaging. You can write to
the configuration registers to set the configuration or
read from the configuration registers to get the current
settings.
ReadWord/WriteWord
ReadWord/WriteWord
ReadWord/WriteWord
ReadWord/WriteWord
TYPE
2
C-compatible serial interface to
Registers and Commands
TRANSACTION TYPE
ReadWord/WriteWord
ReadWord/WriteWord
ReadWord/WriteWord
ReadWord/WriteWord
ReadWord/WriteWord
ReadWord/WriteWord
ReadWord/WriteWord
ReadWord/WriteWord
See the CONFIG0 section.
See the CONFIG1 section.
See the CONFIG2 section.
See the CONFIG3 section.
ReadWord
ReadWord
ReadWord
ReadWord
ReadWord
ReadWord
ReadWord
ReadWord
ReadWord
ReadWord
ReadWord
ReadWord
SendByte
SendByte
RESULT
2
C/SMBus regis-