Software Description
10
SNLU180C – August 2015 – Revised September 2019
Copyright © 2015–2019, Texas Instruments Incorporated
DS250DF810EVM User’s Guide
•
EEPROM Size: The EEPROM size must be set to 256, 512, or 1024 bytes. A single external EEPROM
can be used by up to 16 DS250DF810 devices.
–
The first 3 bytes of EEPROM data is the base header. The base header contains the CRC enabled,
address map header enabled, EEPROM<256 bytes, device count, and maximum EEPROM burst
size settings.
–
If multiple devices are programmed, an address map header is needed for each device. The
address map header specifies the CRC value and the Device EEPROM Start Address.
–
EEPROM Size
≤
256 Bytes:
•
EEPROM Size = 3 Bytes (Base Header) + # of devices * 8 Bytes/device (Address Header) + #
of slots * 66 Bytes/slot (Data)
–
EEPROM Size > 256 Bytes:
•
EEPROM Size = 3 Bytes (Base Header) + # of devices * 12 Bytes/device (Address Header) + #
of slots * 66 Bytes/slot (Data)
2.2.4
High-Level Page
2.2.4.1
Overview
The High-Level Page on the Selection Panel enables the user to easily configure and/or check the status
of the DS250DF810 high-speed data path functional blocks: Clock and data recovery (CDR), Receiver
equalization, Transmitter output driver, PRBS generator and checker, and cross-point. The figure below
shows the landing page after uses selects “High-Level Page on the Selection Panel. The first button
option is the “Block Diagram”, an illustrative page highlighting the DS250DF810’s functional stages. The
configuration features for the additional tabs within the High-Level Page are described further in the next
sub-sections.
Figure 9. High-Level Page, with Block Diagram Tab Selected
