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TMPM341FDXBG

Toshiba
Part Number TMPM341FDXBG
Manufacturer Toshiba
Description 32-bit RISC Microprocessor
Published Feb 21, 2017
Detailed Description 32 Bit RISC Microcontroller TX03 Series TMPM341FDXBG/FYXBG ©TOSHIBA CORPORATION 2010-2023 All Rights Reserved TMPM341F...
Datasheet PDF File TMPM341FDXBG PDF File

TMPM341FDXBG
TMPM341FDXBG


Overview
32 Bit RISC Microcontroller TX03 Series TMPM341FDXBG/FYXBG ©TOSHIBA CORPORATION 2010-2023 All Rights Reserved TMPM341FDXBG/FYXBG * ARM, ARM Powered, AMBA, ADK, ARM9TDMI, TDMI, PrimeCell, RealView, Thumb, Cortex, Coresight, ARM9, ARM926EJ-S, Embedded Trace Macrocell, ETM, AHB, APB, and KEIL are registered trademarks or trademarks of ARM Limited in the EU and other countries.
* R Important Notices Make sure to read read this chapter before using the product.
TMPM341FDXBG/FYXBG 1 Serial bus interface There are restrictions on the use of I2C bus mode when the multi-master function is used.
1.
1 Description When the multi-master function is used in I2C bus mode, if these masters start the communications simultaneously, the following phenomena may occur: 1.
Communications may be locked up.
2.
SCL pulse widths shorten; therefore these pulses may not satisfy I2C Specifications.
1.
2 Condition These phenomena occur only when the multi-master function is used in I2C bus mode.
If a single master is used, these phenomena do not occur.
1.
3 Workaround There is no workaround for these phenomena.
Perform recovery process by software.
1.
4 How to Recover from These Phenomena Perform recovery process by software.
By using a timer, add timeout process to check whether communication is in a lock-up state.
An example of recovery process: 1.
Start a timer count synchronously with start of the transmission.
2.
If a serial interface interrupt (INTSBIx) does not occur in a certain period, the MCU determines the timeout.
3.
If the MCU determines the timeout, communications may be locked up.
Perform software reset on the serial bus interface circuit.
This circuit is initialized to release communication from the lock up state.
4.
Resend transmission data.
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