tmp19a61f10xbg TOSHIBA Semiconductor CORPORATION, tmp19a61f10xbg Datasheet - Page 517
tmp19a61f10xbg
Manufacturer Part Number
tmp19a61f10xbg
Description
32-bit Tx System Risc Tx19 Family
Manufacturer
TOSHIBA Semiconductor CORPORATION
Datasheet
1.TMP19A61F10XBG.pdf
(575 pages)
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Note that addressing of operation commands is different from the case of standard commands due to the
specific interface arrangements with the CPU as detailed operation of the user boot mode and RAM transfer
mode is described later. Also note that the flash memory is written in 32-bit blocks. So, 32-bit (word) data
transfer commands must be used in writing the flash memory.
22.3 On-board Programming of Flash Memory (Rewrite/Erase)
(1)
Automatic page program
Automatic chip erase
Automatic block erase
Write protect
Protect function
Major functions
Block configuration
In on-board programming, the CPU is to execute software commands for rewriting or erasing the
flash memory. The rewrite/erase control program should be prepared by the user beforehand.
Because the flash memory content cannot be read while it is being written or erased, it is necessary
to run the rewrite/erase program from the internal RAM or from an external memory device after
shifting to the user boot mode. In this section, flash memory addresses are represented in virtual
addresses unless otherwise noted.
Except for some functions, writing and erasing flash memory data are in accordance with the
standard JEDEC commands. In writing or erasing, use the SW command of the CPU to enter
commands to the flash memory. Once the command is entered, the actual write or erase operation is
automatically performed internally.
22.3.1 Flash Memory
Chip 1
Chip 0
Fig. 22.4 Block Configuration of Flash Memory
Writes data automatically.
Erases the entire area of the flash memory automatically.
Erases a selected block automatically. (128 kB at a time)
The write or erase function can be individually inhibited for each block (of 128 kB).
By writing a 4-bit protection code, the write or erase function can be individually inhibited for
each block.
When all blocks are set for protection, the entire protection function is automatically enabled.
Protect area 3
Protect area 2
Protect area 1
Protect area 0
Table 22.5 Flash Memory Functions
TMP19A61 (rev1.0) 22-516
0xBFCF_FFFF
0xBFC0_0000
Description
Block 7 128 KB
Block 6 128 KB
Block 5 128 KB
Block 4 128 KB
Block 3 128 KB
Block 2 128 KB
Block 1 128 KB
Block 0 128 KB
TMP19A61
128 words
128 words
128 words
128 words
|
|
x 256
x 256
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