tmp19a61f10xbg TOSHIBA Semiconductor CORPORATION, tmp19a61f10xbg Datasheet - Page 531

• Manufacturer Part Number: tmp19a61f10xbg
• Description: 32-bit Tx System Risc Tx19 Family
• Manufacturer: TOSHIBA Semiconductor CORPORATION

23. Various protecting functions
23.1 Overview
23.2 Features
23.2.1 Flash Protect Function
A built-in Flash can prohibit the operation of writing and the deletion at every the block of every 128
Kbyte. This function is called the block protecting.
To make the block protecting function effective, set the protect bit, which corresponds to the block to
protect, to “1”. The block protecting can be released by making the protecting bit "0". See the chapter
of the Flash operation for the program method.
The protecting bit can be monitored by FLCS register < BLPRO3:0 > bit.
The state to put protecting on all blocks is called the FLASH protecting. Please note that all the
protecting bits become "0" after all data in the flash is automatically deleted. It occurs when you
release the protection (to make the protecting bit "0") in the state of the FLASH protection.
The Flash protecting must be activated to validate the “ROM data protecting” and “DSU protecting”
described later.
The TMP19A61 incorporates the ROM protect function for designating the internal ROM (flash) area
as a read-protected area and the DSU protect function for prohibiting the use of DSU (DSU-Probe).
The read protect functions specifically include the following:
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Flash protect function
ROM data protect function
DSU protect function
TMP19A61 (rev1.0) 23-530
TMP19A61