tmp1940cyaf TOSHIBA Semiconductor CORPORATION, tmp1940cyaf Datasheet - Page 407

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

Prepare to get a command
(Send 10H: normal response)
ACK data
RAM Transfer processing
Set I/O Interface Mode
Get SIO operation mode
data
Transmission routine
Received data (10H)
3.5.16
Normal response
Single Boot
program starts
SIO Operation
Receive error?
RAM Transfer?
Receive routine
Get a command
Jump to RAM
ACK data & 0xF0
(Send 30H)
Processed
ACK data
normally?
ACK data
Initialize
Mode?
(30H)
Received data
I/O Interface
No normally
Yes (10h)
Yes normally
General Boot Program Flowchart
Figure 3.15 shows an overall flowchart of the boot program.
UART
Yes
ACK data
Program UART mode and
(Send 20H: normal response)
Show Flash Memory Sum
Transmission routine
Received data (20H)
Normal response
Memory Sum?
Figure 3.15 Overall Boot Program Flow
(Send 86H)
ACK data 0x08
Show Flash
processing
Baud rate
baud rate
ACK data
ACK data
setting?
(86H)
Received data
Can be set
Yes (20h)
TMP1940FDBF-49
Cannot be set
Show Product Information
(Send 30H: normal response)
(Send x8H: Receive error)
Transmission routine
Transmission routine
Received data (30H)
Stop operation
Show Product
Information?
processing
ACK data
Yes (30h)
Command error
TMP1940FDBF
(Send x1H: Command error)
Transmission routine
ACK data | 0x01
ACK data