NXP Semiconductors QorIQ LS1043ARDB - Page 30

LS1043A
I2C1
DVDD
=
3.3 V
Mini PCIe
RTC
Addr=0x51
I2C1_SCL, I2C1_SDA
CLK gen.
Addr=0x69
6V49205BNLGI
Current
monitor
Addr=0x40
INA220AIDGST
PC34VR500V4
PMIC
Addr=0x08
Thermal
monitor
Addr=0x4C
SA56004ED
EEPROM
Addr=0x52,
0x53
CAT24C05
PCIe
PCF85263ATT
DVDD
Figure 2-10. I2C scheme
The table below summarizes the I2C bus device addresses.
Table 2-9. I2C bus device map
I2C bus I2C address Device Manufacturer Description
I2C1 0x52, 0x53 CAT24C05 ON Semiconductor Half of the device is used as an SPD
EEPROM for DDR. The other half is
used as a store system ID and MAC
address.
0x4C SA56004ED NXP Semiconductors Thermal monitor
0x08 PC34VR500V4 NXP Semiconductors Power management integrated circuit
(PMIC) for the onboard powers
0x69 6V49205BNLGI IDT Clock generator
0x40 INA220AIDGST Texas Instruments Current/power monitor
0x51 PCF85263ATT NXP Semiconductors Real-time clock (RTC)
I2C address is
defined by the
plugged-in PEX
card
Mini-PCIe slot
I2C address is
defined by the
plugged-in PEX
card
X1 PEX slot
I2C interface
QorIQ LS1043A Reference Design Board Reference Manual, Rev. 4, 11/2017
30 NXP Semiconductors