tmp1940cyaf TOSHIBA Semiconductor CORPORATION, tmp1940cyaf Datasheet - Page 378

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

(2) After
(3) Once User Boot mode is entered, execute the copy routine to copy the flash programming routine
memory in User Boot mode. If mode switching conditions are met, the flash memory enters User
Boot mode. (All interrupts including NMI must be globally disabled while in User Boot mode.)
to either the TMP1940FDBF on-chip RAM or an external memory device. (In the following
figure, the on-chip RAM is used.)
RESET
(a) Mode Judgment Routine
(b) Programming Routine
(c) Copy Routine
(b) Programming Routine
TMP1940FDBF
(a) Mode Judgment Routine
(c) Copy Routine
TMP1940FDBF
Flash Memory
Flash Memory
[Reset Procedure]
[Reset Procedure]
Old Application
Program Code
Old Application
Program Code
is released, the reset procedure determines whether to put the TMP1940FDBF flash
TMP1940FDBF-20
Host Controller
Host Controller
(b) Programming Routine
I/O
I/O
RAM
RAM
New Application
Program Code
New Application
Program Code
0
Conditions for
entering User Boot
mode (defined by
the user)
1 RESET
TMP1940FDBF