PCN-20210127 TE0720 CPLD Firmware Revision Ugrade from REV05 to REV06

Products Affected

This change affects Trenz Electronic boards TE0720 of Revision 03: TE0720-03-*

Changes

#1 Generic options: PUDC and Boot Mode

Type: Enhancement
Reason: Adjustable pullup or pulldown status for IO pins and changing the boot mode or PUDC for custom request faster
Impact: None. Default CPLD source code is still PUDC low (Pullups activated) and Boot Mode QSPI/SD.

#2 MIO7 Pullnone

Type: Enhancement
Reason: HW Pulldown on carrier for Bank0 Voltage selection (3.3V)
Impact: No Impact

#3 Adding internal en_3v3_int

Type: Enhancement
Reason: To connect 3.3V to enable pin of the 3.3V regulator after the core
Impact:  To achive power sequencing correctly

#4 JTAG C_* high impedance until 3.3VOUT can be high

Type: Enhancement
Reason: JTAG pins connected to Zynq are high impedance as long as there is no voltage in the core.
Impact: No Impact, improve Power sequencing

#5 Boot mode pins are GND or high impedance until en_3v3_int are high

Type: Enhancement
Reason: Boot Mode pins connected to Zynq are high impedance as long as there is no voltage in the core.
Impact: No Impact, improve Power sequencing

#6 MIO14,15 high impedance until en_3v3_int are high

Type: Enhancement
Reason: UART pins that to Zynq connected are high impedance as long as there is no voltage in the core.
Impact: No Impact, improve Power sequencing

#7 JTAG time constraint

Type: Enhancement
Reason: Signal propagtion constraints to improve JTAG on high traffic
Impact: No Impact, improve JTAG connection

#8 JTAG drive line adjustment

Type: Enhancement
Reason: Driver constraints to improve JTAG on high traffic
Impact: No Impact, improve JTAG connection

#9 Bugfix I2C to GPIO module (I2C_to_GPIO.v)

Type: Bugfix
Reason:  To communicate corectly with I2C to GPIO subsystem
Impact:  Reading and writing data from/to CPLD internal registers via I2C bus correctly

#10 Changed Firmware Identifier to REV06

Type: Enhancement
Reason: show new firmware revision with Trenz FSBL
Impact: No Impact

More information about System Controller can be found here: TE0720 System Controller

Method of Identification

All TE0720-03 SoMs noted in the column replacement are with REV06 CPLD firmware.

Production Shipment Schedule

TE0720-03-61C33FA variant will be available from mid of May in parallel to the precursor. From end of Juli 2021, after old stock is gone, all variants above are replaced by the corresponding variants.