tmp19a44fda TOSHIBA Semiconductor CORPORATION, tmp19a44fda Datasheet - Page 598

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

Flash Memory Operation
(2-A) General Procedure: Using the Program in the On-Chip Boot ROM
(1) The flash block containing the older version of the program code need not be erased before
(2) Reset the TMP19A44F with the mode setting pins held at appropriate logic values, so that the CPU
Boot Mode
executing the programming routine. Since a programming routine and programming data are
transferred via the SIO0, the SIO0 must be connected to a host controller. Prepare a programming
routine on the host controller.
re-boots from the on-chip boot ROM. The 12-byte password transferred from the host controller is
first compared to the contents of special flash memory locations. (If the flash block has already
been erased, the password is 0xFFFF.)
TMP19A44F
TMP19A44F
Old Application Program
Old Application Program
Code (or Erased State)
Code (or Erased State)
Flash Memory
Flash Memory
Boot ROM
Boot ROM
TMP19A44 (rev1.3)24-13
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
0 → 1 RESET
0
BOOT
TMP19A44
2010-04-01