tmp19a43fd TOSHIBA Semiconductor CORPORATION, tmp19a43fd Datasheet - Page 33

• Manufacturer Part Number: tmp19a43fd
• Description: 32-bit Risc Microprocessor
• Manufacturer: TOSHIBA Semiconductor CORPORATION

Note 1: In I/O Interface mode, the baud rate for the transfers of the first and second bytes must be 1/16 of the desired baud
Note 2: In case of any negative acknowledge, the boot program returns to a state in which it waits for a command code
Note 3: The 19th to 25th bytes must be within the RAM address range 0xFFFD_8000–0xFFFF_CFFF
Boot ROM
RAM
rate.
(3rd byte). In I/O Interface mode, if a communication error occurs, a negative acknowledge does not occur.
1st byte
2nd byte
3rd byte
4th byte
5th byte
thru
16th byte
17th byte
18th byte
19th byte
20th byte
21st byte
22nd byte
23rd byte
24th byte
25th byte
26th byte
27th byte
thru
mth byte
(m + 1)th byte
(m + 2)th byte
(m + 3)th byte
Byte
Table 3.3 Transfer Format for the RAM Transfer Command
Data Transferred from the Controller
Serial operation mode and baud rate
For UART mode
For I/O Interface mode
Command code
Password sequence (12 bytes)
(0x4000_0474 thru 0x4000_047F)
Checksum value for bytes 5–16
RAM storage start address (bits 31–24)
RAM storage start address (bits 23–16)
RAM storage start address (bits 15–8)
RAM storage start address (bits 7–0)
RAM storage byte count (bits 15–8)
RAM storage byte count (bits 7–0)
Checksum value for bytes 19–24
RAM storage data
Checksum value for bytes 27–m
to the TMP19A43FDXBG






TMP19A43 (rev2.0)3-19
(10H)
86H
30H
Desired baud
rate (Note 1)
Baud Rate
ACK for the serial operation mode byte
ACK for the command code byte (Note 2)
ACK for the checksum byte (Note 2)
ACK for the checksum byte (Note 2)
ACK for the checksum byte (Note 2)
Jump to RAM storage start address
For UART mode
For I/O Interface mode
Normal acknowledge
Negative acknowledge
Communication error
Normal acknowledge
Negative acknowledge
Communication error
Normal acknowledge
Negative acknowledge
Communication error
Normal acknowledge
Non-acknowledge
Communications error
Normal acknowledge
Normal acknowledge
TMP19A43FDXBG to the Controller
(The boot program aborts if the baud rate
is can not be set correctly.)
Data Transferred from the
Flash Memory Operation
TMP19A43













86H
30H
30H
x1H
x8H
10H
x1H
x8H
10H
x1H
x8H
10H
x1H
x8H