Local I2C Buses
Buses
5 - 18
PPC/CPCI-690
Local I2C Buses
The board provides two local I2C buses, the Discovery and the SENTINEL
I2C bus.
Discovery I2C Bus
The Discovery I2C bus provides access to board information memory
devices of the board itself and attached accessories like an RTB or PMC
modules.
This I2C bus can be accessed via:
• IPMI controller and Master write/read command
• JTAG connector
• I2C interface integrated in system controller
Table 22:
On-Board I2C Devices
Device
Type
Size in KByte
Board ID-ROM
24LC128
128
IPMI ID-ROM
24C02
2
Table 23:
Off-Board I2C Devices
Device
Type
Size in KByte
Description
PIB1
Depends on used PMC module
-
PMC 1 information
block
PIB2
Depends on used PMC module
-
PMC 2 information
block
RTB ID-
ROM
24C02
2
-
Summary of Contents for PPC/CPCI-690
Page 1: ...PPC CPCI 690 Reference Guide P N 227356 Revision AC June 2006 ...
Page 22: ...xxii PPC CPCI 690 ...
Page 28: ...xxviii PPC CPCI 690 ...
Page 35: ...1 Introduction ...
Page 36: ......
Page 43: ...2 Installation ...
Page 44: ......
Page 46: ...Action Plan Installation 2 4 PPC CPCI 690 ...
Page 64: ...Board Installation Installation 2 22 PPC CPCI 690 ...
Page 65: ...3 Controls Indicators and Connectors ...
Page 66: ......
Page 75: ...4 PowerBoot ...
Page 76: ......
Page 128: ...Command Set PowerBoot 4 54 PPC CPCI 690 ...
Page 129: ...5 Buses ...
Page 130: ......
Page 148: ...Local I2C Buses Buses 5 20 PPC CPCI 690 ...
Page 149: ...6 Maps and Registers ...
Page 150: ......
Page 164: ...Register Maps and Registers 6 16 PPC CPCI 690 ...
Page 165: ...A Battery Exchange ...
Page 166: ......
Page 169: ...B Troubleshooting ...
Page 170: ......
Page 176: ...I 2 PPC CPCI 690 ...