H8S2153 Datasheet, PDF (556/750 Pages) Renesas Technology Corp – 16-Bit Single-Chip Microcomputer H8S Family / H8S/2100 Series

Section 19 Flash Memory
Initial
Bit
Bit Name Value R/W
4
FLER 0
R
Description
Flash Memory Error
Indicates an error occurs during programming and
erasing flash memory. When FLER is set to 1, flash
memory enters the error protection state.
When FLER is set to 1, high voltage is applied to the
internal flash memory. To reduce the damage to flash
memory, the reset must be released after the reset
period of 100 µs which is longer than normal.
0: Flash memory operates normally.
Programming/erasing protection for flash memory
(error protection) is invalid.
[Clearing condition]
• At a reset or in hardware standby mode
1: An error occurs during programming/erasing flash
memory.
Programming/erasing protection for flash memory
(error protection) is valid.
[Setting conditions]
• When an interrupt, such as NMI, occurs during
programming/erasing flash memory.
• When the flash memory is read during
programming/erasing flash memory (including a
vector read or an instruction fetch).
• When the SLEEP instruction is executed during
programming/erasing flash memory (including
software-standby mode)
• When a bus master other than the CPU, such as the
DTC, gets bus mastership during
programming/erasing flash memory.
Rev. 2.00 Sep.11, 2008 Page 520 of 710
REJ09B0384-0200