
Fetch ACK
No
Yes
End
No
Process NAK
Yes
Report an error
No
Yes
No
Reached
maximum
retries?
Report a timeout
error
Yes
0x5A
received?
0xA2
received?
0xA1
received?
Read 1 byte
from target
Read 1 byte
from target
Figure 23-17. Host reads ACK packet from target via I2C
Fetch
Response
Yes
Yes
payload length
part from target
(2 bytes)
CRC checksum
from target
Payload length
less than supported
length?
Yes
payload data
from target
No
Set payload length
to maximum
supported length
No
No
Reached
maximum
Report a timeout
Yes
End
No
(2 bytes)
Read 1 byte
from target
0x5A
received?
0xA4
received?
Read 1 byte
from target
retries?
error (End)
Read
Read
Read
Figure 23-18. Host reads response from target via I2C
23.5.2 SPI Peripheral
The Kinetis Bootloader in ROM supports loading data into flash via the SPI peripheral,
where the SPI peripheral serves as a SPI slave.
Peripherals Supported
Kinetis KE1xF Sub-Family Reference Manual, Rev. 4, 06/2019
618
NXP Semiconductors
Summary of Contents for KE1xF Series
Page 2: ...Kinetis KE1xF Sub Family Reference Manual Rev 4 06 2019 2 NXP Semiconductors...
Page 138: ...Usage Guide Kinetis KE1xF Sub Family Reference Manual Rev 4 06 2019 138 NXP Semiconductors...
Page 360: ...Usage Guide Kinetis KE1xF Sub Family Reference Manual Rev 4 06 2019 360 NXP Semiconductors...
Page 490: ...Interrupts Kinetis KE1xF Sub Family Reference Manual Rev 4 06 2019 490 NXP Semiconductors...
Page 562: ...Boot Kinetis KE1xF Sub Family Reference Manual Rev 4 06 2019 562 NXP Semiconductors...
Page 706: ...Usage Guide Kinetis KE1xF Sub Family Reference Manual Rev 4 06 2019 706 NXP Semiconductors...
Page 736: ...Usage Guide Kinetis KE1xF Sub Family Reference Manual Rev 4 06 2019 736 NXP Semiconductors...
Page 866: ...Usage Guide Kinetis KE1xF Sub Family Reference Manual Rev 4 06 2019 866 NXP Semiconductors...
Page 1164: ...Usage Guide Kinetis KE1xF Sub Family Reference Manual Rev 4 06 2019 1164 NXP Semiconductors...
Page 1178: ...Usage Guide Kinetis KE1xF Sub Family Reference Manual Rev 4 06 2019 1178 NXP Semiconductors...
Page 1380: ...Usage Guide Kinetis KE1xF Sub Family Reference Manual Rev 4 06 2019 1380 NXP Semiconductors...
Page 1472: ...Kinetis KE1xF Sub Family Reference Manual Rev 4 06 2019 1472 NXP Semiconductors...
Page 1482: ...Kinetis KE1xF Sub Family Reference Manual Rev 4 06 2019 1482 NXP Semiconductors...