tmp1940cyaf TOSHIBA Semiconductor CORPORATION, tmp1940cyaf Datasheet - Page 385

• Manufacturer Part Number: tmp1940cyaf
• Description: 32-bit Tx System Risc Tx19 Family
• Manufacturer: TOSHIBA Semiconductor CORPORATION

(3) If the password was correct, the boot program downloads, via the SIO0, the programming routine
(4) The CPU jumps to the programming routine in the on-chip RAM to erase the flash block
from the host controller into the on-chip RAM of the TMP1940FDBF. The programming routine
must be stored in the address range 0xFFFF_8000 – 0xFFFF_8FFFF.
containing the old application program code. The Block Erase or Chip Erase command may be
used.
Note: At this point, r29 (sp) points to address 0xFFFF_9100.
Old Application Program
Code (or Erased State)
TMP1940FDBF
TMP1940FDBF
Flash Memory
Flash Memory
Boot ROM
Boot ROM
Erased
TMP1940FDBF-27
(a) Programming Routine
(a) Programming Routine
Host Controller
Host Controller
I/O
I/O
SIO0
SIO0
RAM
RAM
(a) Programming routine
(a) Programming routine
New Application
New Application
Program Code
Program Code
TMP1940FDBF