R01UH0822EJ0100 Rev.1.00
Page 923 of 1041
Jul 31, 2019
RX13T Group
31. Flash Memory (FLASH)
31.4.18
Flash Write Buffer Register L (FWBL)
This register is used to set the lower 16 bits of the data for programming the ROM or the data for programming the E2
DataFlash.
Data can be written to this register in ROM P/E mode or E2 DataFlash P/E mode.
This register is initialized by a reset or setting the FRESETR.FRESET bit to 1. Data cannot be written to this register
while the FRESETR.FRESET bit is 1.
If this register is read while executing a software command set by the FEXCR register, an undefined value is read.
Address(es): FLASH.FWBL 007F FF8Ch
b15
b14
b13
b12
b11
b10
b9
b8
b7
b6
b5
b4
b3
b2
b1
b0
Value after reset:
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
The data for programming the E2 DataFlash should be set in bit 7 to bit 0.