W90P710_05 Datasheet, PDF (70/526 Pages) Winbond – 16/32-bit ARM microcontroller

W90P710
EBI Control Register (EBICON)
REGISTER
EBICON
ADDRESS
0xFFF0_1000
R/W
DESCRIPTION
R/W EBI control register
RESET VALUE
0x0001_0000
31
30
29
28
27
26
25
24
RESERVED
EXBE3 EXBE2 EXBE1
EXBE0
23
22
21
20
19
18
17
16
RESERVED
REFEN REFMOD CLKEN
15
14
13
12
11
10
9
8
REFRAT
7
6
5
4
3
2
1
0
REFRAT
WAITVT
LITTLE
BITS
[31:28]
[27]
[26]
[25]
RESERVED
EXBE3
EXBE2
EXBE1
DESCRIPTION
External IO bank 3 byte enable
This function is used for some devices that with high and low bytes
enable signals to control which byte will be write or mask data output
when read. For this kind device, software can set this bit HIGH to
implement this function. Detail pin interconnection is showed as Fig7.3.8.
1 = nWBE[3:0] pin is byte enable signals, nWE will be used as write
strobe signal to SRAM.
0 = nWBE[3:0] pin is byte write strobe signal.
External IO bank 2 byte enable
The bit function description is the same as EXBE3 above.
1 = nWBE[3:0] pin is byte enable signals, nWE will be used as write
strobe signal to SRAM.
0 = nWBE[3:0] pin is byte write strobe signal.
External IO bank 1 byte enable
The bit function description is the same as EXBE3 above.
1 = nWBE[3:0] pin is byte enable signals, nWE will be used as write
strobe signal to SRAM
0 = nWBE[3:0] pin is byte write strobe signal
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