W90N745CD Datasheet, PDF (351/422 Pages) Winbond – 16/32-bit ARM microcontroller

W90N745CD/W90N745CDG
I²C Software Mode Register 0/1(I²C_SWR 0/1)
REGISTER
I²C_SWR0
I²C_SWR1
ADDRESS
0xFFF8_600C
0xFFF8_610C
R/W
DESCRIPTION
R/W I²C Software Mode Control Register 0
R/W I²C Software Mode Control Register 1
RESET VALUE
0x0000_003F
0x0000_003F
31
30
29
28
27
26
25
24
Reserved
23
22
21
20
19
18
17
16
Reserved
15
14
13
12
11
10
9
8
Reserved
7
6
5
4
3
2
1
0
Reserved
Reserved SDR
SCR Reserved SDW
SCW
Note: This register is used as software mode of I²C. Software can read/write this register no matter I²C_EN is 0 or 1. But SCL
and SDA are controlled by software only when I²C_EN = 0.
BITS
[31:6]
[5]
[4]
[3]
[2]
[1]
[0]
Reserved
Reserved
SDR
SCR
Reserved
SDW
SCW
DESCRIPTIONS
Reserved
Reserved
Serial Interface SDA Status (Read only)
0 = SDA is Low.
1 = SDA is High.
Serial Interface SCK Status (Read only)
0 = SCL is Low.
1 = SCL is High.
Reserved
Serial Interface SDA Output Control
0 = SDA pin is driven Low.
1 = SDA pin is tri-state.
Serial Interface SCK Output Control
0 = SCL pin is driven Low.
1 = SCL pin is tri-state.
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