EKF PC7-FESTIVAL, Руководство пользователя

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User Guide • PC7-FESTIVAL • CompactPCI® PlusIO CPU Board
Local SMB/I
2
C Devices
The PC7-FESTIVAL contains devices that are attached to the System Management Bus (SMBus).
These are the SPD EEPROMs for the on-board memory or the possibly plugged SODIMM, a general
purpose serial EEPROM containing board configuration data, the supply voltage/temperature
controlling device NCT7491, a set of board control and status registers as well as two general
purpose, non-volatile electronic jumpers. Additional devices may be connected to the different I
2
C
controllers of the CM238 via the CompactPCI ® PlusIO backplane signals I
2
C_SCL (J1 Pin B17) and
I
2
C_SDA (J1 Pin C17) or the mezzanine expansion connectors P-HSE2 or P-EXP.
Controller Address Description
SMBus 0x2C Hardware Monitor/Memory Down
Temperature Sensor (7491)
SMBus 0x2E Board Control/Status
SMBus 0x2F Non-volatile Electronic Jumper
SMBus 0x50
0x36/0x37
SPD EEPROM of On-board Memory 4KBit
EEPROM Select Bank 0/1
SMBus 0x52
0x36/0x37
SPD EEPROM of SODIMM 4KBit
EEPROM Select Bank 0/1
SMBus 0x57 General Purpose EEPROM 2KBit
I2C[0]
1)
P-HSE2 (Pins A22/A23), P-EXP (Pins 29/30)
I2C[1]
1)
CompactPCI PlusIO backplane J1 (Pins B17/C17)
1) Address depends on devices attached
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