Contact us

A new window will open A new window will open

Restrictions on Consumer Electronics Control (CEC)

Product Types
TOSHIBA Microcontrollers TX03 Series
  • TMPM330FDFG
  • TMPM330FYFG
  • TMPM330FWFG

This issue affects the products listed below. If your tentative datasheet is dated 30 September 2010 or earlier, please read the description of restrictions given below.

  • TMPM330FDWFG
  • TMPM330FYWFG
  • TMPM332FWUG
  • TMPM390FWFG
  • TMPM395FWXBG
  • TMPM361F10FG
  • TMPM362F10FG
  • TMPM363F10FG
  • TMPM364F10FG
  • TMPM360F20FG

This is to inform you of restrictions on use of the Consumer Electronics Control (CEC) of the TX03 Series of Toshiba microcontrollers.
If you need any further information, please contact your local Toshiba sales representative.

Restrictions

Restrictions are applied when the "low" samplings for noise cancellation, CECRCR1<CECLNC>, is used as the CEC function.

Detailed restrictions

1. Set the same values to both "low" samplings for noise cancellation CECRCR1<CECLNC> and the rising timing of data bit CECTCR<CECDTRS>.
2. Set the values of "low" samplings for noise cancellation CECRCR1<CECLNC> between "000" and "011".

Description

Follow the above restrictions when you use the CEC function. In the restricted condition, "low" signal output timing (when a minimum cycle error is detected) and ACK response timing are as follows.

1. ACK response timing

"Low" time at an ACK response is as shown below.

The figure of ACK response timing

The "low" samplings for noise cancellation and the rising timing of data bit need to be configured the same. Values need to be carefully selected because the configuration of the rising timing of data bit affects "low" time of transmit data.

2. "Low" output timing when a minimum cycle error occur

"Low" output timing when a minimum cycle error occurs is as shown below.

The figure of &quo

When a minimum cycle error occurs, "low" signal is output (about 3.63 ms) after the elapse of "Low" samplings for noise cancellation.

Setting Examples

Setting examples are shown as below.

"Low" samplings for noise cancellation CECRCR1<CECLNC> = "010" 2/fs (about 0.06 ms)
Rising timing of data bit CECTCR<CECDTRS> = "010" Base time - 2/fs (about 0.06 ms)

In the above condition, "low" output periods of ACK, transmit data and a minimum cycle error are as shown below.

  • ACK output waveform: 1.587 ms = 1.526 ms + 0.06 ms
  • Logical "1" output: 0.54 ms = 0.6ms - 0.06 ms
  • Logical "0" output: 1.44 ms = 1.5ms - 0.06 ms
  • Minimum cycle error "low" output: 3.7 ms= 3.63 ms + 0.06 ms
Corrected Sections
Corrections on the page of CECRCR1 (Receive control Register 1)

1. The following part has been deleted:
A setting example when the "low" samplings for noise cancellation <CECLCN> are 4/fs (five consecutive fs clocks observed) or higher.
2. A note was added as follows: Use <CECLNC> with the same settings with CECTCR<CECDTRS>.

The figure of Corrections on the page of CECRCR1 (Receive control Register 1)

Corrections on the page of CECTCR (Transmit Control Register)

1. The following part has been deleted:
A setting example when rising timing of data bit <CECDTRS> is the base time 4/fs or higher.
2. A note was added as follows: Use <CECDTRS> with the same settings with CECRCR1<CECLNC>.

The figure of Corrections on the page of CECTCR (Transmit Control Register)

Corrections on the page of ACK response

Corrections on the description and the figures of "low" output timing when a ACK response is sent.

The figure of Corrections on the page of ACK response

Corrections on the page of cycle error

The following note has been added to the description about the minimum cycle error.

The figure of Corrections on the page of cycle error

Contacts

If you have any queries, click one of these links:

Technical queries
Queries about purchasing, sampling and IC reliability
To Top
·Before creating and producing designs and using, customers must also refer to and comply with the latest versions of all relevant TOSHIBA information and the instructions for the application that Product will be used with or for.