NXP Semiconductors QorIQ LX2160A - Page 34

0
1
2
3
4
5
6
7
Thermal
Monitor
SA56004E
VDD
LTC3882
12V0_2
I2C1_CH2
I2C1_CH3
I2C1_CH2
Program
3V3_SB
THERM_ALARM_B
PCA9547PW
Addr = 0x75
I2C1_CH1
I2C1_CH0
DDR
UDIMM
#1-#4 SPD
Addr
0x51..0x54
2V5
3V3_SB3V3_SB
3V3_SB
I2CBOOT
24AA512
I2C1_CH7
I2C1_CH4,
I2C1_CH5
I2C1_CH6
3V3_SB
Addr
0x50
3V3_SB3V3_SB3V3_SB
3V3_SB3V3_SB3V3_SB
3V3_SB3V3_SB3V3_SB
I2C1_CH3
Program
Addr
0x63
VDD Current
INA220
Addr
0x40
Addr
0x4C
3V33V33V3
3V33V33V3
XFI Conn: FTLX1371D3-BCL
3V33V33V3
3V33V3
THERM_WARN_B
SiLabs
Si5341
Addr
0x74
3V3
Slot1: PCIe
SiLabs
Si52208
Addr
0x6A
OVDD
Slot2: PCIe
Thermal
Monitor
SA56004F
Addr
0x4D
3V3_SB
2V52V5
I2C1_CH0_2V5
Microchip
EMC2305
Addr
0x4D
3V3
CS4223
Config
EEPROM
Addr
0x50
3V33V3
40G MAC2: zQSFP+
25G MAC5: SFP+
25G MAC6: SFP+
I2C1_CH6
Program
System ID
AT24C02C
3V3_SB
Addr
0x57
Volt. Trans.
NTSX2102GD
I2C1_CH1
Program
I2C1_CH0
Program
Figure 21. I2C channels
The following table describes all major devices available on I2C bus.
Table 17. I2C bus device map
I2C bus 7-bit address Device Description Notes
I2C1
- LX2160ARDB I2C master
0x66 CPLD I2C slave I2C access to CPLD
BCSRs (registers).
0x77 NXP PCA9547PW I2C bus multiplexer
(primary)
Converts I2C1 bus into
eight channels
I2C1_CH0
0x50 Microchip 24AA512-I/SN I2C boot memory Provides I2C booting
option
0x51 256-byte EEPROM SPD data Stores SPD and
temperature data for
DDR#1 UDIMM
connector 1
Table continues on the next page...
NXP Semiconductors
LX2160ARDB Functional Description
QorIQ LX2160A Reference Design Board Reference Manual, Rev. 4, 07/2020
Reference Manual 34 / 116