T35 Revision History

Table 1. Revision History
Date Version Description
November 2025 3.6 Updated T35 Unused Resources and Features. (DOC-2610)
Updated CBSEL[1:0] in Table 3.
April 2025 3.5 Fixed typo in Table 1. (DOC-2500)
April 2025 3.4 Updated LVDS used as GPIO state in Pin States topic.
Updated configuration timing waveforms. (DOC-2325)
Corrected MIPI reset timing diagram. (DOC-2323)
Moved information about unused resources to T35 Unused Resources and Features.
November 2024 3.3 Updated GPIO interface pin names (IN to I and OUT to O). (DOC-2086)
Fixed typo in Table 3. (DOC-2038)
Corrected merged banks for F324 package (see I/O Banks).
Footnote added to Table 1. (DOC-1939)
Removed Dynamic Enable Pin Name from Table 3. Pin does not exist in Trion family. (PT-2355)
Added Pin States topic. (DOC-2087)
SPI and JTAG pins should not be active at the same time for configuration. (DOC-2046)
Renamed package prefix to match Efinity software (e.g., BGA changesd to F).
March 2024 3.2 Added F256 package information.
Corrected merged banks for F324 package (see T35 I/O Banks).
February 2024 3.1 Updated SPI passive timing waveform.
Added note about external DC-biased circuit is required if the incoming LVDS signals are AC-coupled and link to Trion Hardware Design Checklist and Guidelines. (DOC-1532)
MIPI D-PHY specification is v1.1. (DOC-1610)
October 2023 3.0
Added LVDS RX Static Mode Delay Setting. (DOC-1473)
Updated Maximum Toggle Rate table by adding recommendation to run simulation for actual toggle rate. (DOC-1468)
Updated 2.5 V and 1.8 LVCMOS Single-Ended I/O Internal Weak Pull-Up and Pull-Down Resistance. (DOC-1476)
June 2023 2.9
Removed tLVDS_DT and tINDT specs, and replaced with tPLL_HLW and tLVDS_CPA. (DOC-1189)
Updated PLL LOCKED signal description. (DOC-1208)
April 2023 2.8
Corrected tLVDS_SU and tLVDS_HD specs (DOC-1070)
Updated PLL RSTN signal description about de-asserting only when CLKIN is stable. (DOC-1226)
February 2023 2.7
Updated tLVDS_skew specs. (DOC-1111)
Updated tLVDS_SU specs (DOC-1070)
Updated power up sequence diagram. (DOC-954)
Added note to use LVDS blocks from the same side to minimize skew. (DOC-1150)
Updated Advanced PLL Settings table descriptions. (DOC-945)
November 2022 2.6
Added note recommending up to only 2 cascading PLLs. (DOC-931)
Corrected IOH and IOL in buffer drive strength characteristic specifications. (DOC-933)
Updated FVCO, FPLL, and FPFD PLL Timing parameter specifications and PLL Interface Designer Settings - Manual Configuration Tab notes. (DOC-1019)
Added tLVDS_SU, tLVDS_HD specs and LVDS RX timing waveforms.
September 2022 2.5
Removed PLL_EXTFB from alternative input. (DOC-849)
Updated output clock frequency for BR0 CLKOUT0 specs. (DOC-271)
Updated Advanced PLL LOCKED signal description. (DOC-763)
April 2022 2.4 Added note about not using LVDS RX as a reference clock resource to drive the PLL BR0. (DOC-768)
Updated test condition load to maximum load in Maximum Toggle Rate Table. (DOC-781)
Updated Connection Requirements for Unused Resources table by specifying VCC value. (DOC-770)
Updated note about leaving at least 2 pairs of unassigned LVDS pins between any GPIO and LVDS in the same device side. (DOC-769)
March 2022 2.3
Updated behaviour description for GPIO and LVDS as GPIO pins during configuration, and unused GPIO pins during user mode. (DOC-720)
Added note about the block RAM content is random and undefined if it is not initialized. (DOC-729)
Updated DDR description in features list. (DOC-733)
Updated power supply ramp rate and power up sequence diagram. (DOC-631)
January 2022 2.2 Corrected power supply ramp rate. (DOC-699)
January 2022 2.1
Added Output Differential Voltage with Reduce VOD Swing option enabled specs. (DOC-648)
Added maximum I/O pin input current, IIN, and maximum per bank specs. (DOC-652)
Added PLL input clock duty cycle, tINDT, specs. (DOC-661)
Updated CDONE pin direction as bidirectional. (DOC-672)
November 2021 2.0
Added storage temperature, TSTG spec. (DOC-560)
Updated maximum JTAG mode TCK frequency, fTCK. (DOC-574)
Updated CSI pin description. (DOC-546)
Updated LVDS Pins Configured as Single-Ended I/O Buffer Drive Strength specifications. (DOC-578)
Update LVDS standard compliance which is TIA/EIA-644. (DOC-592)
Updated tCLKH and tCLKL, and corrected SPI Passive Mode (x1) Timing Sequence waveform. (DOC-590)
Updated REF_RES_xx description. (DOC-602, DOC-605)
Updated Maximum Toggle Rate table. (DOC-630)
Updated minimum Power Supply Ramp Rates. (DOC-631)
September 2021 1.9 Added Single-Ended I/O and LVDS Pins Configured as Single-Ended I/O Rise and Fall Time specs. (DOC-522)
Added note to Active mode configuration clock frequency stating that for parallel daisy chain x2 and x4 configuration, fMAX_M, must be set to DIV4. (DOC-528)
Added Global Clock Location topic. (DOC-532)
Added Maximum tUSER for SPI Active and Passive Modes topic. (DOC-535)
August 2021 1.8
Added internal weak pull-up and pull-down resistor specs. (DOC-485)
Updated table title for Single-Ended I/O Schmitt Trigger Buffer Characteristic. (DOC-507)
Added note in Pinout Description stating all dedicated configuration pins have Schmitt Trigger buffer. (DOC-507)
June 2021 1.7
Updated CRESET_N pin description. (DOC-450)
April 2021 1.6 Updated PLL specs; tILJIT (PK - PK) and tDT. (DOC-403)
Added note about limiting number of LVDS as GPIO output and bidirectional per I/O bank to avoid switching noise. (DOC-411)
March 2021 1.5 Added LVDS TX reference clock output duty cycle and lane-to-lane skew specs. (DOC-416)
February 2021 1.4
Corrected LVDS TX Settings in Efinity® Interface Designer Output Load deafult value. (DOC-375)
Updated Density parameter description and added 256Mb to choice to LPDDR2 in DDR Interface Designer Settings. (DOC-377)
Added I/O input voltage, VIN specification. (DOC-389)
Added LVDS TX data and timing relationship waveform. (DOC-359)
Added LVDS RX I/O electrical specification waveform. (DOC-346)
December 2020 1.3 Updated the notes for Output Load parameter in LVDS TX Settings in Efinity Interface Designer. (DOC-309)
Added data for C4L and I4L DC speed grades. (DOC-268)
Added a table to Power Up Sequence topic describing pin connection when PLL, GPIO, MIPI, or DDR is not used. (DOC-325)
Updated NSTATUS pin description. (DOC-335)
Updated PLL reference clock input note by asking reader to refer to PLL Timing and AC Characteristics. (DOC-336)
Added other PLL input clock frequency sources in PLL Timing and AC Characteristics. (DOC-336)
Removed OE and RST from LVDS block as they are not supported in software. (DOC-328)
For the DDR reference clock, the software issues a warning (instead of error) if you do not connect the reference clock to an I/O pad. (DOC-264)
September 2020 1.2 Updated pinout links.
Corrected speed grades for single-ended I/O and LVDS configured as single-ended I/O fMAX.
August 2020 1.1 Update MIPI TX and RX Interface Block Diagram to include signal names.
Updated REF_CLK description for clarity.
Updated tUSER timing parameter values and added a note about the conditions for the values.
Correct the VDDIO_DDR to VCCIO_DDR.
Updated description for GPIO pins state during configuration to exclude LVDS as GPIO.
Added fMAX for single-ended I/O and LVDS configured as single-ended I/O.
Added maximum power supply current transient during power-up.
Correct the VDDIO_DDR to VCCIO_DDR.
July 2020 1.0
Removed preliminary note from DC and switching characteristics, LVDS I/O electrical specifications, MIPI electrical specifications and timing, PLL timing and AC characteristics, and configuration timing. These specifications are final.
Added VDDIO_DDR absolute maximum ratings.
Added VDDIO_DDR for DDR3, DDR3L, LPDDR3, and LPDDR2 recommended operating conditions.
Updated timing parameter symbols in boundary scan timing waveform to reflect JTAG mode parameter symbols.
Added supported GPIO features.
Updated the maximum FVCO for PLL to 1,600 MHz.
Updated the C divider requirement for the 90 degrees phase shift in the PLL Interface Designer Settings - Manual Configuration Tab.
Updated the DDR DRAM reset signal from RST_N to CFG_RST_N.
Corrected DDR DRAM block diagram by adding DDR_CK signal.
Updated minimum setup time for passive configuration mode to 6.5ns.
Updated I/O bank names from TL_CORNER, BL_CORNER, TR_CORNER, and BR_CORNER to TL, BL, TR, and BR respectively.
Updated LVDS electrical specifications note about RX differential I/O standard support, and duplicated the note in LVDS functional description topic.
Added note to LVDS RX interface block diagram.
Removed all instances of DDR3U.
July 2020 1.0
Added note to recommended power-up sequence about MIPI power guideline.
Updated the term DSP to multiplier.
Updated power up sequence description about holding CRESET_N low.
Updated floorplan diagram for FPGAs in F324 and F400 Packages.
Added I/O bank information for F400 package.
Updated PLLCLK pin name to PLL_CLKIN.
Added PLL_EXTFB and MIPI_CLKIN as an alternative input in GPIO signals table for complex I/O buffer.
Added PLL reference clock resource assignments for F400 package.
Updated Memory CAS Latency (CL) choices in Advanced Options tab - Memory Mode register settings subtab.
Updated Output Drive Strength choices for LPDDR2 in Advanced Options tab - Memory Mode register settings subtab.
Corrected Enable Target 1 parameter notes in AXI 0 and AXI 1 tabs.
Removed restriction on CLKOUT1 and CLKOUT2 when CLKIN is used to drive the DDR on CLKOUT0 in DDR DRAM PHY signals table.
Added note stating that low core leakage current (6.7 mA typical) is applicable to F256 package only.
Updated available GPIO, global clocks from GPIO pins, and global controls from GPIO pins for F400 package.
February 2020 0.3
Added JTAG timing specifications.
In MIPI RX and TX interface description, updated maximum data pixels for RAW10 data type.
Added MIPI reset timing information.
Added Trion power-up sequence. MIPI power-up moved to this topic.
VCC12A_MIPI_TX, VCC12A_MIPI_RX maximum recommended operating condition changed to 1.25 V.
Added a note to the Supported Configuration Modes topic to clarify that T35 F324 FPGAs do not support multi-image configuration in SPI active x1 mode.
Added the maximum PLL output clock speed for PLL BR0 CLKOUT0 (DDR PHY input clock).
Corrected the read and write signal directions in the DDR block diagram. Corrected write strobe bus width.
Added number of global clocks and controls that can come from GPIO pins to package resources table.
December 2019 0.2 Updated DDR block description.
Updated PLL Interface Designer settings.
Removed MIPI data type bit settings. Refer to AN 015: Designing with the Trion MIPI Interface for the bit settings.
Removed DIV1 and DIV2 active mode configuration frequencies; they are not supported.
Added note to LVDS electrical specifications about RX differential I/O standard support.
November 2019 0.1 Initial release.