User’s Manual
V2.2 2014-12
Microcontrollers
AURIX™
TC27x D-Step
32-Bit Single-Chip Microcontroller
Edition 2014-12
Published by
Infineon Technologies AG
81726 Munich, Germany
© 2014 Infineon Technologies AG
All Rights Reserved.
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User’s Manual
V2.2 2014-12
Microcontrollers
AURIX™
TC27x D-Step
32-Bit Single-Chip Microcontroller
TC27x D-Step
User’s Manual V2.2, 2014-12
TC27x User’s Manual
Revision History: V2.2 2014-12
Significant changes since previous version: TC27x-D User’s Manual V2.1
Chapter Subjects (major changes since last revision)
Introduction • Removed redundant introduction sections.
• Enhanced OCDS introduction.
SCU/CCU • Updated divider formula in registers CCUCON6,7,8.
• Updated table “CCU allowed Clock Ratios”.
SCU/PMC • Updated reset value of EVRRSTCON.
SCU/SCU • Corrected DTSCON.CAL width.
• Removed design related register reference from “OCDS Behavior of
WDTs”.
MTU • MCONTROL.Res4 field (bits 14:12) marked as “Must be written with
0x4” in to maintain redundancy.
• Sections “Reading a Single Memory Location” and “Writing a Single
Memory Location” should always write MCONTROL with the MS nibble
0x4 instead of 0x0.
• Design related register reference “RDR” removed.
SMU • Corrected register long name of SMU_RTC to “Recovery Timer
Configuration”.
• DMA alarm ALM2[24] is now reserved. Alarm implemented by DMA SRI
error detection alarms.
• Improved description of alarm ALM3[27].
• SCU alarm ALM3[28] is now reserved. Feature not implemented.
• Pre-alarms PreAlarm[129=DMA.(Safety FF Error Detection)] and
PreAlarm[130=PMU.(Safety FF Error Detection)] removed because
DMA and PMU do not implement Safety FF.
• Added configuration hints to SMU_AG<n>CF<m> Registers: reserved
alarms shall be configured as “No Action”.
• Enhanced description of register SMU_RMEF and SMU_RMSTS.
• Enhanced description of register SMU_PCTL with advice how to
operate it in the application.
• Changed section “SMU Integration Guidelines”.
• Explained “Register Monitor” = “Safety Flip-Flop”.
• Improved Figure “SMU State Machine”.
• Improved section “FSP Fault State”.
TC27x D-Step
User’s Manual 2 V2.2, 2014-12
PMU/Flash • Noted that “Verify Erased Logical Sector Range” is not blocked on
password containing UCBs when the protection is disabled.
• Removed confusing statement that unavailable DFlash ranges can be
programmed to all-1.
• Noted explicitly that the UCBs 8 to 11 are read-only.
• Clarified that both “Write Page” and “Write Burst” can be used to
program UCBs.
• Removed statement about restricted FAR capabilities.
• Removed note from “Erase Logical Sector Range” that warned from
erasing more than 256 KByte because of increased suspend times. The
suspend times are not increasing.
• Changed note for “Erase Logical Sector Range” that described that
erase time can be much shorter than maximum times documented in
the Data Sheet. The reason was removed as there are more
dependencies.
• Documented “Test Pass Marker” in UCB_IFX.
• Removed term “Reset Class” and replaced by named resets.
• Stated explicitly that a failed HSM boot prevents device boot.
PORTS • Corrected description of LVDS pads in CMOS mode: removed
sentence “no open-drain mode available”.
IR • Added clarification: a pending Service Request is cleared in the Service
Request Node with the Acknowledge from the Service Provider. The
Acknowledge does not mean that the Service Request is serviced at
that time (e.g. disabled or not implemented DMA channel, Trap on CPU
prevents execution of Service Request).
• Added description of the ECC algorithm used for the IR internal Error
Detection.
ASCLIN • Block “Auto Baud Rate Operation” added.
• Description of register field “BRD.MEASURED” improved.
QSPI • Removed maximum baud rates from feature list as these depend on
pad speeds and PCB implementation.
MSC • Description of “Clock Control when using the ABRA Block” improved.
• Equation of Ncycles for extended frames changed: added factor 32 to
PPDE.
MultiCAN+ • Fixed pad naming for all devices.
• CRC issue of CAN FD standard documented and recommended
additional software CRC.
TC27x User’s Manual
Revision History: V2.2 2014-12
