W90N745CD Datasheet, PDF (69/422 Pages) Winbond – 16/32-bit ARM microcontroller

W90N745CD/W90N745CDG
ROM/Flash Control Register （ROMCON）
REGISTER
ROMCON
ADDRESS
0xFFF0_1004
R/W
DESCRIPTION
R/W ROM/FLASH control register
RESET VALUE
0x0000_0XFC
31
30
29
28
27
26
25
24
BASADDR
23
22
21
20
19
18
17
16
BASADDR
SIZE
15
14
13
12
11
10
9
8
RESERVED
tPA
7
6
5
4
3
2
1
0
tACC
BTSIZE
PGMODE
BITS
[31:19]
[18:16]
[15:12]
BASADDR
SIZE
RESERVED
DESCRIPTION
Base address pointer of ROM/Flash bank
The start address is calculated as ROM/Flash bank base pointer << 18.
The base address pointer together with the “SIZE” bits constitutes the
whole address range of each bank.
The size of ROM/FLASH memory
SIZE [10:8]
Byte
0
0
0
256K
0
0
1
512K
0
1
0
1M
0
1
1
2M
1
0
0
4M
1
0
1
RESERVED
1
1
0
RESERVED
1
1
1
RESERVED
-
- 64 -