tmp19a44fda TOSHIBA Semiconductor CORPORATION, tmp19a44fda Datasheet - Page 600

• Manufacturer Part Number: tmp19a44fda
• Description: 32bit Tx System Risc
• Manufacturer: TOSHIBA Semiconductor CORPORATION

Flash Memory Operation
(5) Next, the programming routine downloads new application program code from the host controller
(6) When programming of the flash memory is complete, power off the board and disconnect the
and programs it into the erased flash block. Once programming is complete, protection for writing/
erasing of that flash block is turned on.
It is not allowed to move program control from the programming routine back to the boot ROM.
In the example below, new program code comes from the same host controller via the same SIO
channel as for the programming routine. However, once the programming routine has begun to
execute, it is free to change the transfer path and the source of the transfer. Create board hardware
and a programming routine to suit your particular needs.
cable leading from the host to the target board. Turn on the power again so that the TMP19A44F
re-boots in Single-Chip (Normal) mode to execute the new program.
TMP19A44F
TMP19A44F
Flash Memory
Flash Memory
Boot ROM
Boot ROM
New Application
New Application
Program Code
Program Code
TMP19A44 (rev1.3)24-15
(a) Programming Routine
Host Controller
Host Controller
I/O
SIO0
SIO0
RAM
RAM
(a) Programming Routine
New Application
Set to Single-Chip
mode ( BOOT =1).
Program Code
0 → 1 RESET
TMP19A44
2010-04-01