peb20560 Infineon Technologies Corporation, peb20560 Datasheet - Page 124

• Manufacturer Part Number: peb20560
• Description: Dsp Oriented Pbx Controller Doc
• Manufacturer: Infineon Technologies Corporation

Semiconductor Group
Start Boot Procedure
Description: Start the boot procedure.
Used for starting the boot procedure (as response to the OAK command “start loading
program RAM”) and for restarting the boot if something failed during the boot (as
response to the OAK command “Error During boot”).
2.7.9.8
The OAK opcodes enable the OAK to send commands to the µP.
Start Loading Program RAM
Description: This command requests the µP to start loading the program RAM. It is
Note: The INT2 vector is used by the boot routine in a pending method (reading the
Error During Boot Procedure
Description: This command requests the µP to stop the download due to an error
The ERR field is the error status as follows:
000
001
0
0
0
ST2), therefore, the INT2 interrupt vector can be written without influencing the
boot procedure.
A µP command different then nop, finish boot or write program arrived.
The data written to the program was not read back (result of a test of the first few
loaded words to the program RAM).
OAK Opcodes
used by the boot routine to initiate the load of the program RAM.
(which may be fixed by starting the download from the beginning).
1
0
1
0
0
1
1
0
1
2-78
0
0
0
Functional Block Description
E
1
1
R
0
1
PEB 20560
R
2003-08
1
1