Texas Instruments Jacinto7, User Manual

Page: 27 / 29

Table 3-5. Power management IC’s (continued)
Bus #1
Address Power Rail Nom V Shunt Value
Bus #2
Address Power Rail Nom V Shunt Value
0x4A
Processor
LPDDR IO
(VDD_DDR_1V
1)
1.1 10m-ohm 0x4A (VCC_12V0) 12 10m-ohm
0x4B
(VDD_PHYCO
RE_0V8)
0.8 10m-ohm 0x4B (VSYS_5V0) 5 10m-ohm
0x4C
(VDA_PLL_1V8
)
1.8 10m-ohm 0x4C (VSYS_3V3) 3.3 5m-ohm
0x4D
(VDD_PHY_1V
8)
1.8 10m-ohm 0x4D (VSYS_3V3) 3.3 1m-ohm
0x4E
(VDA_USB_3V
3)
3.3 10m-ohm 0x4E
(VDA_DLL_0V8
)
0.8 10m-ohm
0x4F
(VDD_GPIORE
T_3V3)
3.3 10m-ohm 0x4F (EXP_3V3) 3.3 10m-ohm
3.4.2 Shared Interfaces / Signal Muxing
Due to the number of features available on the EVM, there are some limitations for which features can be used
simultaneously. Many of the conflicts revolve around the emulation/trace functionality. When trace is selected/
enabled, the following features are not accessible: Audio, Power Measurement (access from processor), reduce
CAN-FD availability as well as few other items. See schematic for a complete definition of interfaces which share
resources.
3.4.3 Power Delivery Network (PDN)
Refer to separate document.
3.4.4 Identification EEPROM
The EVM board identity and revision information are stored in an on-board EEPROM. The first 259 bytes of the
memory are pre-programmed with EVM identification information. The format of the data is provided in
Table 3-6 .
The remaining bytes are available to user defined storage.
Table 3-6. Board ID Information
Field Name Offset /Size Value Comments
MAGIC 0000 / 4B (Hex) 0xEE3355AA Header Identifier
M_TYPE 0004 / 1B (Hex) 0x01
Fixed length and variable position
board
ID header
M_LENGTH 0005 / 2B (Hex) 0x3C Size of payload
B_TYPE 0007 / 1B (Hex) 0x10 Payload type
B_LENGTH 0008 / 2B (Hex) 0x2E Offset to next header
B_NAME 000A / 16B (CHAR) J721S2X-PM1-SOM Name of the board
DESGIN_REV 001A / 2B (CHAR) E4 Revision number of the design
PROC_NBR 001C / 4B (CHAR) 118 PROC number
VARIANT 0020 / 2B (CHAR) 01 Design variant number
PCB_REV 0022 / 2B (CHAR) E4 Revision number of the PCB
SCHBOM_REV 0024 / 2B (CHAR) E4
Revision number of the
schematic
SWR_REV 0026 / 2B (CHAR) 01 first software release number
VENDORID 0028 / 2B (CHAR) 01 0x1: Manufactured by Mistral
BUILD_WK 002A / 2B (CHAR) 40 week of the year of production
BUILD_YR 002C / 2B (CHAR) 22 year of production
BOARDID 002E / 6B (CHAR) 0
SERIAL_NBR 0034 / 4B (CHAR) xxxx incrementing board number
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SPRUJ69 – DECEMBER 2022
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