W90N745CD Datasheet, PDF (347/422 Pages) Winbond – 16/32-bit ARM microcontroller

W90N745CD/W90N745CDG
6.14.2 I²C Serial Interface Control Registers Map
R: read only, W: write only, R/W: both read and write
NOTE1: The reset value of I²C_WR0/1 is 0x3F only when SCR, SDR and SER are connected to pull
high resistor.
REGISTER
I²C_CSR0
I²C_DIVIDER0
I²C_CMDR0
I²C_SWR0
I²C_RxR0
I²C_TxR0
I²C_CSR1
I²C_DIVIDER1
I²C_CMDR1
I²C_SWR1
I²C_RxR1
I²C_TxR1
ADDRESS
0xFFF8_6000
0xFFF8_6004
0xFFF8_6008
0xFFF8_600C
0xFFF8_6010
0xFFF8_6014
0xFFF8_6100
0xFFF8_6104
0xFFF8_6108
0xFFF8_610C
0xFFF8_6110
0xFFF8_6114
R/W
R/W
R/W
R/W
R/W
R
R/W
R/W
R/W
R/W
R/W
R
R/W
DESCRIPTION
I²C Interface 0
I²C0 Control and Status Register
I²C0 Clock Prescale Register
I²C0 Command Register
I²C0 Software Mode Control Register
I²C0 Data Receive Register
I²C0 Data Transmit Register
I²C Interface 1
I²C1 Control and Status Register
I²C1 Clock Prescale Register
I²C1 Command Register
I²C1 Software Mode Control Register
I²C1 Data Receive Register
I²C1 Data Transmit Register
RESET VALUE
0x0000_0000
0x0000_0000
0x0000_0000
0x0000_003F
0x0000_0000
0x0000_0000
0x0000_0000
0x0000_0000
0x0000_0000
0x0000_003F
0x0000_0000
0x0000_0000
I²C Control and Status Register 0/1 (I²C_CSR0/1)
REGISTER
I²C_CSR0
I²C_CSR1
ADDRESS R/W
DESCRIPTION
0xFFF8_6000 R/W I²C Control and Status Register 0
0xFFF8_6100 R/W I²C Control and Status Register 1
RESET VALUE
0x0000_0000
0x0000_0000
31
30
29
28
27
26
Reserved
23
22
21
20
19
18
Reserved
15
14
13
12
11
10
Reserved
I²C_RxACK I²C_BUSY
7
6
5
4
3
2
Reserved
Tx_NUM
Reserved
IF
25
17
9
I²C_AL
1
IE
24
16
8
I²C_TIP
0
I²C_EN
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