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ST STM32L4x6 User Manual

ST STM32L4x6
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Inter-integrated circuit (I2C) interface RM0351
1176/1693 DocID024597 Rev 3
35.7.12 I2C register map
The table below provides the I2C register map and reset values.
Table 190. I2C register map and reset values
Offset Register
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0x0
I2C_CR1
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
PECEN
ALERTEN
SMBDEN
SMBHEN
GCEN
WUPEN
NOSTRETCH
SBC
RXDMAEN
TXDMAEN
Res.
ANFOFF
DNF[3:0]
ERRIE
TCIE
STOPIE
NACKIE
ADDRIE
RXIE
TXIE
PE
Reset value 0000000000 0000000000000
0x4
I2C_CR2
Res.
Res.
Res.
Res.
Res.
PECBYTE
AUTOEND
RELOAD
NBYTES[7:0]
NACK
STOP
START
HEAD10R
ADD10
RD_WRN
SADD[9:0]
Reset value 000000000000000000000000000
0x8
I2C_OAR1
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
OA1EN
Res.
Res.
Res.
Res.
OA1MODE
OA1[9:0]
Reset value 0 00000000000
0xC
I2C_OAR2
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
OA2EN
Res.
Res.
Res.
Res.
OA2MS
K [2:0]
OA2[7:1]
Res.
Reset value 0 0000000000
0x10
I2C_TIMINGR PRESC[3:0]
Res.
Res.
Res.
Res.
SCLDEL[3:0
]
SDADEL[3:
0]
SCLH[7:0] SCLL[7:0]
Reset value 0000 000000000000000000000000
0x14
I2C_
TIMEOUTR
TEXTEN
Res.
Res.
Res.
TIMEOUTB[11:0]
TIMOUTEN
Res.
TIDLE
TIMEOUTA[11:0]
Reset value 0 0000000000000 0000000000000
0x18
I2C_ISR
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
ADDCODE[6:0]
DIR
BUSY
Res.
ALERT
TIMEOUT
PECERR
OVR
ARLO
BERR
TCR
TC
STOPF
NACKF
ADDR
RXNE
TXIS
TXE
Reset value 000000000 00000000000001
0x1C
I2C_ICR
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
ALERTCF
TIMOUTCF
PECCF
OVRCF
ARLOCF
BERRCF
Res.
Res.
STOPCF
NACKCF
ADDRCF
Res.
Res.
Res.
Reset value 000000 000
0x20
I2C_PECR
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
PEC[7:0]
Reset value 00000000
0x24
I2C_RXDR
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
RXDATA[7:0]
Reset value 00000000

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ST STM32L4x6 Specifications

General IconGeneral
BrandST
ModelSTM32L4x6
CategoryMicrocontrollers
LanguageEnglish

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