Datasheet

Section 25 Flash Memory
Rev. 2.00 Aug. 20, 2008 Page 953 of 1198
REJ09B0403-0200
4. After all user MAT are automatically erased, the state of waiting for programming/erasing
command is entered. When the programming command is received, the state shifts to the state
of waiting for programming data. The same applies to erasing. In addition to the commands for
programming/erasing, there are commands for performing sum check, blank check (erasure
check), and memory read of the user MAT, and acquiring the current status information.
(3) Notes on USB Boot Mode Execution
• The clock of 48 MHz needs to be supplied to the USB module. Set the external clock
frequency and clock pulse generator so as to supply 48 MHz as the clock for the USB (cku).
For details, refer to section 22, USB Function Module (USB).
• If the bus powered HUB is disconnected during the flash memory programming and erasing,
permanent damage to the LSI may result.