SH7014 Datasheet, PDF (533/754 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

18. 128 kB Flash Memory (F-ZTAT)
Bit 6⎯Software Write Enable Bit (SWE): Enables or disables the flash memory. This bit should
be set before setting bits 5 to 0, and EBR1 bits 7 to 0.
Bit 6
SWE
0
1
Description
Writes disabled
Writes enabled
[Setting condition]
When FWE = 1
(Initial value)
Bit 5⎯Erase Setup Bit (ESU): Prepares for a transition to erase mode. Do not set the SWE, PSU,
EV, PV, E, or P bit at the same time.
Bit 5
ESU
0
1
Description
Erase setup cleared
Erase setup
[Setting condition]
When FWE = 1 and SWE = 1
(Initial value)
Bit 4⎯Program Setup Bit (PSU): Prepares for a transition to program mode. Do not set the
SWE, ESU, EV, PV, E, or P bit at the same time.
Bit 4
PSU
0
1
Description
Program setup cleared
Program setup
[Setting condition]
When FWE = 1 and SWE = 1
(Initial value)
Rev.5.00 Sep. 27, 2007 Page 499 of 716
REJ09B0398-0500