BORA SOM/Part number composition

History
Issue Date	Notes
2021/11/22	First version
2022/02/09	Added option on Boot/Misc
2022/04/06	Added L option on SOC
2023/07/09	Added explanation NOR SPI size limitation

Part number composition

BORA SOM module part number is identified by the following digit-code table:

Part number structure	Options	Description
Family	DBR	Family prefix code
SOC	A: XC7Z010 ARM Cortex-A9 667MHz - Speed grade -1 B: XC7Z010 ARM Cortex-A9 766MHz - Speed grade -2 C: XC7Z010 ARM Cortex-A9 866MHz - Speed grade -3 D: XC7Z020 ARM Cortex-A9 667MHz - Speed grade -1 E: XC7Z020 ARM Cortex-A9 766MHz - Speed grade -2 F: XC7Z020 ARM Cortex-A9 866MHz - Speed grade -3 I: XC7Z014S ARM Cortex-A9 766MHz - Speed grade -2 L: XC7Z020 ARM Cortex-A9 866MHz - Speed grade -1 Automotive Temp range: Tj:-40 / 125°C	System on chip definition (and FPGA speed grade)
NOR SPI	0: 0MB 4: 16MB	QUAD SPI NOR flash memory size - The limitation to max 16MB is due to this Errata from Xilinx. The proposed solution by Xilinx has not been approved by DAVE Embedded Systems
RAM	1: 1GB 9: 512MB	DDR3 Memory RAM size
NAND	0: 0MB 1: 1GB NAND SLC 7: 128MB NAND SLC 8: 256MB NAND SLC 9: 512MB NAND SLC	Flash memory NAND size
Boot/Misc	0: NOR boot, FPGA 34 fixed PSU, no Voltage Monitor 1: NOR boot, FPGA 34 variable PSU, no Voltage Monitor 2: NOR boot, FPGA 34 fixed PSU, Voltage Monitor 3: NOR boot, FPGA 34 variable PSU, Voltage Monitor 4: NOR boot, FPGA 34 variable PSU, Voltage Monitor MON_1.8V	Boot and Voltage Monitor options
Temperature range	C - Commercial grade: suitable for 0/70°C environment I - Industrial grade: suitable for -40/85°C environment S - Super Commercial grade: suitable for 0/85°C environment Q - Military Grade: -40-125°C
PCB revision	0: first version 1: revision B 2: revision C 3: revision D - SnPb version	PCB release may change for manufacturing purposes (i.e. text fixture adaptation)
Manufacturing option	R: RoHS compliant D: No RoHS, conformal coating, sealing P: SnPb process, sealing, acrylic coating	typically connected to production process and quality
Software Configuration	-00: standard factory u-boot pre-programmed -XX: custom version	If customers require custom SW deployed this section should be defined and agreed. Please contact technical support

Example

BORA SOM code DBRF4110C2R-00

• DBR - BORA SOM module
• F - XC7Z020 ARM Cortex-A9 866MHz - Speed grade -3
• 4 - 16MB NOR Flash
• 1 - 1GB DDR3
• 1 - 1GB NAND flash
• 0 - NOR boot, FPGA bank 34 fixed PSU, without Voltage monitor
• C - Commercial temperature range
• 2 - PCB revision C
• R- RoHS manufacturing process
• -00 - standard u-boot pre-programmed

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