W90P710_05 Datasheet, PDF (72/526 Pages) Winbond – 16/32-bit ARM microcontroller

W90P710
Continued.
BITS
[2:1]
[0]
WAITVT
LITTLE
DESCRIPTION
Valid time of nWAIT signal
W90P710 recognizes the nWAIT signal at the next “nth” MCLK rising
edge after the nOE or nWBE active cycle. WAITVT bits determine the n.
WAITVT [2:1]
nth MCLK
0
0
1
0
1
2
1
0
3
1
1
4
Little Endian mode
After power on reset, the content of LITTLE is the Power-On Setting
value from D14 pin. If pin D14 is pull-down, the external memory format
is Big Endian mode. If pin D14 is pull-up, the external memory format is
Little Endian mode. For more detail, refer to Power-On Setting of System
Manager.
NOTE: This bit is read only.
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
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