R01UH0822EJ0100 Rev.1.00
Page 910 of 1041
Jul 31, 2019
RX13T Group
31. Flash Memory (FLASH)
31.4
Register Descriptions
31.4.1
E2 DataFlash Control Register (DFLCTL)
Note 1. Unique ID read, start-up area information program, and access window information program
The DFLCTL register is used to enable or disable access (read, program, and erase) to the E2 DataFlash and access
(unique ID read, start-up area information program, and access window information program) to the extra area in P/E
mode.
When reading, programming, and erasing the E2 DataFlash, set the DFLCTL.DFLEN bit to 1 and wait for the E2
DataFlash STOP recovery time (tDSTOP) to elapse before reading the E2 DataFlash and entering E2 DataFlash P/E
mode. Do not read the E2 DataFlash or enter E2 DataFlash P/E mode until tDSTOP has elapsed.
Refer to
section 31.7.1, Sequencer Modes
for details on E2 DataFlash P/E mode. Refer to
for E2 DataFlash STOP recovery time (tDSTOP).
Address(es): FLASH.DFLCTL 007F C090h
b7
b6
b5
b4
b3
b2
b1
b0
—
—
—
—
—
—
—
DFLEN
Value after reset:
0
0
0
0
0
0
0
0
Bit
Symbol
Bit Name
Description
R/W
b0
E2 DataFlash Access
Enable
0: Access to E2 DataFlash and access to the extra area in P/E mode*
disabled
1: Access to E2 DataFlash and access to the extra area in P/E mode*
enabled
R/W
b7 to b1
—
Reserved
These bits are read as 0. The write value should be 0.
R/W