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Table 15. I2C1 bus device map (continued)
I2C bus
7-bit address
Device
Description
Notes
I2C1_CH7
I2C address is
defined by the
plugged-in mikro-
click module
MIKROE 2395
BLE / BEE / NFC
Provides I2C connectivity
to mikro-click modules on
connectors J31 and J32.
A 7-bit address does not include the read/write (R/W) bit as an address member, though some datasheets might
do so. For consistency, all I2C addresses above are of 7 bits only.
NOTE
2.14 XSPI interface
The LS1028ARDB octal serial peripheral interface (XSPI) supports two onboard XSPI serial flash memories (NOR flash and
NAND flash) for boot image and one QSPI emulator for offboard QSPI emulation. The XSPI chip-select signals from the processor
are driven to the XSPI memories or to the QSPI emulator through two high-speed multiplexers.
The XSPI memories and QSPI emulator supports single mode data transfer at boot; additionally, NOR flash memory supports
octal mode, NAND flash memory supports qual mode, and QSPI emulator supports quad mode data transfer.
The figure below shows the LS1028ARDB XSPI connections.
QSPI Emulator
Samtec
TFM-110-02-L-D-DS-K
0.05" 2x10 “ISP-B”
1.8V
LS1028A
CFG_XSPI_MAP[3:0]
XSPI_A_CS0_B
VB_XSPI_EMU_B
from CPLD
XSPI_A_CS1_B
XSPI_A_D[3:0]
XSPI_A_SCK
XSPI
Micron 512MB
MT29F4G01ABBFD12-
ITES:F
PBGA24
VB_XSPI_CS0_B
XSPI
Micron 256MB
MT35XU02GCBA1G12-
0SITES
PBGA24
VB_XSPI_CS1_B
HS MUX
1:4
(2x)
74CBTLV3253
XSPI_A_D[7:4]
XSPI_A_DQS
x1/x4
x1/x8
x1/x4
Figure 18. XSPI architecture
The table below shows the devices attached to the LS1028ARDB XSPI interface.
LS1028ARDB Functional Description
QorIQ LS1028A Reference Design Board Reference Manual, Rev. b, 11/2018
38
COMPANY CONFIDENTIAL
NXP Semiconductors
Содержание QorIQ LS1028A
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