EKF SC6-TANGO, Руководство пользователя

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SC6-TANGO • CompactPC® Serial • Intel® Atom™ E39xx Processor (APL-I SoC)
Local SMB/I
2
C Devices
The SC6-TANGO contains devices that are attached to the APL-I SoC System Management Bus
(SMBus). These are the SPD EEPROM for the on-board memory, the PLD (MachXO2) glue logic
including a set of board control and status registers, the CPU PMIC, a PCIe clock buffer, a general
purpose serial EEPROM and two general purpose, non-volatile electronic jumpers.
Additional off-board devices may be addressed via discrete I2C master controllers provided by the
APL-I SoC. While the APL I2C port 0 is used on the mezzanine connector P-EXP, the APL I2C port
1 is wired to the CompactPCI® backplane for peripheral card usage. The separation in different
threats reduces considerably potential SMBus/I2C addressing conflicts.
Controller Address Description
SMBus 0x2E Board Control/Status (MachXO FPGA)
SMBus 0x2F Non-volatile Electronic Jumper
SMBus 0x50 SPD on-Board Memory
SMBus 0x57 Board ID EEPROM
SMBus 0x5E PMIC
SMBus 0x6B DB800 Clock Buffer
I2C[0]
1)
P-EXP (Pins 29/30)
I2C[1]
1)
CPCI Backplane
1)
Address depends on devices attached
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