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The BMC is powered from 12V through the LM22675 DC-DC regulator. The connection details are shown
in
Figure
8.
Figure 8. Board Management Controller (BMC) Block Diagram
12 V
DC-DC
LM22675
LCD
128 X 32
Pixels
DIP
Switch
LED
CDCM6208
ISOLATOR x4
SOC,
23 GPIOs
DEVICES
RESET &
CTRL
Signals
SPRUI65A – April 2016 – Revised January 2018
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12V
3.3V
EN
SPI1
I2C1
4
I2C0
GPIOs
2
UART0
GPIOs
BMC
16
SPI0
DSS[8:23]
UART1
INT1
INT
JTAG Lines
GPIOs
5
Copyright © 2016–2018, Texas Instruments Incorporated
12V
DC_DC
TPS54429ERSAREN
DC_DC
PMIC
TPS54429ERSAR
Buffer
Buffer
INA226 x5
MAX3221
4 Pin HDR
Mini USB
-
CP2105
Isolator
MUX/Buffer
Isolator
JTAG
14 Pin
Connector
BMC_RESETn
Push
Button
x6
K2G General Purpose Evaluation Module (EVMK2G)
System Description
3.3V
CVDD
CVDD1
DVDD_DDR
I2C2
I2C0
5 Pin HDR
BOOT MODE SIGNALS
UART2
BMC_INT
SoC_INT
Copyright © 2016, Texas Instruments Incorporated
K2G SoC
21
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